AD 77-22-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | American Champion Aircraft Corp. | 7ECA | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GC | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCA | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCAA | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCB | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7GCBC | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7HC | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
| aircraft | American Champion Aircraft Corp. | 7KCAB | Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes |
Unsafe Condition
Failure to comply with airspeed restrictions and operating limitations could result in exceeding load factors or structural failure of the wing front lift struts, leading to loss of aircraft control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install operating limitation placards near the airspeed indicator, remark airspeed indicators, replace wing front lift struts with Bellanca P/N 5-392, and update Operations Limitations Cards within three months. Verify accelerometer markings and install acrobatic maneuvers placards as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within three (3) months after the effective date of this airworthiness directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bellanca (Champion) Models 7ECA (S/Nos. 1 thru 722, 725, 723-70 thru 1238-78), 7GC (All serial numbers), 7GCA (All serial numbers), 7GCAA (S/Nos. 1 thru 198, 200 thru 204, 276, 205-70 thru 355-78), 7GCB (All serial numbers), 7GCBC (S/Nos. 1 thru 201, 205, 207, 202-70 thru 1024-78), 7HC (All serial numbers), 7KCAB (S/Nos. 1 thru 208, 210 thru 226, 270, 271, 209-70 thru 617-77)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Operating Limitations
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-22-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-22-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7...Show more Subject: Operating Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/07/1977 Make: American Champion Aircraft Corp. Model: 7ECA | 7GC | 7GCA | 7GCAA | 7GCB | 7GCBC | 7HC | 7KCAB Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-22-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3069 AD NUMBER: 77-22-05 SUBJECT HEADING: Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes ACTION: SUMMARY: DATES: Effective November 7, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-22-05 BELLANCA (CHAMPION): Amendment 39-3069. Applies to models 7ECA S/Nos. 1 thru 722, 725, 723-70 thru 1238-78 7GC S/Nos. All 7GCA S/Nos. All 7GCAA S/Nos. 1 thru 198, 200 thru 204, 276, 205-70 thru 355- 78 7GCB S/Nos. All 7GCBC S/Nos. 1 thru 201, 205, 207, 202-70 thru 1024-78 7HC S/Nos. All 7KCAB S/Nos. 1 thru 208, 210 thru 226, 270, 271, 209-70 thru 617-77 Certificated in all categories. Compliance is required as indicated unless already accomplished. Part I Airspeed Restriction/Front Strut Replacement a. Effective immediately, unless already accomplished, attach the following operating limitation placard near the airspeed indicator in full view of the pilot: "DO NOT EXCEED 153 MPH CAS MAXIMUM OPERATING SPEED" The letters on this placard must be at least 1/8 inch in height and on suitable material which can be expected to remain affixed in position and resist deterioration. This placard may be installed by the pilot. b. Within three (3) months after the effective date of this airworthiness directive, accomplish either: 1. Remove red radial marking on airspeed indicator at 162 MPH (141 KTS). Remark indicator with red radial line at 153 MPH (133 KTS). Change Operations Limitations Card as follows: Replace Airspeed Limitations "GLIDE or DIVE-----162 MPH CAS" with "MAXIMUM OPERATING SPEED----153 MPH CAS". Bellanca Service Kit 256 may be used to accomplish this. (Bellanca Service Letter C-127 pertains to this subject.) After marking indicator, the placard required per paragraph (a) above may be removed, or 2. Remove wing front lift struts Bellanca P/N 5-144 and install replacement wing front lift struts Bellanca P/N 5-392 (Bellanca Service Letter C-127 and Service Kit 257 pertain to this subject). After the struts are replaced, the placard per paragraph (a) above may be removed and the airspeed markings and Operations Limitations Card per paragraph (b.1) above may be returned to their original 162 MPH CAS markings. NOTE: The Bellanca P/N 5-392 strut may be identified by a square tube fitting at the wing end. Part II Acrobatic Maneuvers Placard/Accelerometer Markings/Operating Limitations Card Change. Applies to All Bellanca (Champion) Acrobatic Models As Indicated. (Bellanca Service Letter C-128 pertains to this subject.) a. Effective immediately, flight operations shall be conducted in accordance with the limitations specified below. b. Within three (3) months after the effective date of this airworthiness directive unless already accomplished, replace the acrobatic maneuvers placard and remark the accelerometer if applicable as indicated below. 1. For Model 7ECA - S/Nos. 1 thru 722, 725, 723-70 thru 1238-78 7GCAA - S/Nos. 1 thru 198, 200 thru 204, 276, 205-70 thru 355-78 Install Bellanca placard (Bellanca Service Kit 258) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below. LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION DO NOT EXCEED +5.0 OR -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITIONS. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. CAUTION: NEGATIVE G FLIGHT WILL CAUSE LOSS OF OIL AND OIL PRESSURE. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 2. For Model 7GCBC - S/NOS. 1 THRU 201, 205, 207, 202-70 thru 1024- 78 7GCB - Aircraft approved in acrobatic category only Install Bellanca placard (Bellanca Service Kit 259) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below. LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION DO NOT EXCEED +5.0 OR -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. CAUTION: NEGATIVE G FLIGHT WILL CAUSE LOSS OF OIL AND OIL PRESSURE. USE OF FLAPS DURING ACROBATICS PROHIBITED. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 3. For Model 7KCAB - S/Nos. 1 thru 208, 210 thru 226, 270, 271, 209-70 thru 404-73, 405-74 thru 458-74, 460-74 thru 508-75 Install Bellanca placard (Bellanca Service Kit 260) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below: LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION LEVEL INVERTED FLIGHT 120 104 135 MPH (117 KTS) IAS MAX DO NOT EXCEED +5.0 or -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. INVERTED FLIGHT LIMITED TO 2 MIN - MONITOR OIL PRESS WHILE INVERTED TO INSURE MINIMUM OF 60 PSI. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 4. For Model 7KCAB - S/Nos. 459-74, 509-75 thru 617-77 Install Bellanca placard (Bellanca Service Kit 261) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION LEVEL INVERTED FLIGHT 120 104 135 MPH (117 KTS) IAS MAX DO NOT EXCEED +5.0 OR -2.0 G FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. 2 MIN OF INVERTED FUEL NORMALLY AVAILABLE. MOMENTARY OIL PRESSURE INTERRUPTIONS ARE NORMAL. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 5. If aircraft is equipped with accelerometer, verify that the red radial marks are installed at +5.0 G and -2.0 G. If markings are incorrect, remark indicator. c. Within the next 30 days after the effective date of this airworthiness directive, unless already accomplished, attach the following placard near the airspeed indicator in full view of the pilot. The placard will be a facsimile of the following on suitable material which can be expected to remain affixed in position and resist deterioration as shown below: "DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION" This placard is available as a part of the Service Kits described in parts (1) through (4) above. d. For Model 7KCAB, within three (3) months after the effective date of this airworthiness directive, verify that the Operating Limitations Card presents the following information. If markings are incorrect, remark Operating Limitations Card. Replacement Operating Limitations Cards are available in Bellanca Service Kit 262. Maneuvering Flight Limit Load Factors Positive ------------------ 5.0 g Negative ---------------- 2.0 g DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. This amendment becomes effective November 7, 1977. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_77-22-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-22-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7...Show more Subject: Operating Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/07/1977 Make: American Champion Aircraft Corp. Model: 7ECA | 7GC | 7GCA | 7GCAA | 7GCB | 7GCBC | 7HC | 7KCAB Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-22-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3069 AD NUMBER: 77-22-05 SUBJECT HEADING: Airworthiness Directives; Bellanca (Champion) Models 7ECA, 7GC, 7GCA, 7GCAA, 7GCB, 7GCBC, 7HC and 7KCAB Airplanes ACTION: SUMMARY: DATES: Effective November 7, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-22-05 BELLANCA (CHAMPION): Amendment 39-3069. Applies to models 7ECA S/Nos. 1 thru 722, 725, 723-70 thru 1238-78 7GC S/Nos. All 7GCA S/Nos. All 7GCAA S/Nos. 1 thru 198, 200 thru 204, 276, 205-70 thru 355- 78 7GCB S/Nos. All 7GCBC S/Nos. 1 thru 201, 205, 207, 202-70 thru 1024-78 7HC S/Nos. All 7KCAB S/Nos. 1 thru 208, 210 thru 226, 270, 271, 209-70 thru 617-77 Certificated in all categories. Compliance is required as indicated unless already accomplished. Part I Airspeed Restriction/Front Strut Replacement a. Effective immediately, unless already accomplished, attach the following operating limitation placard near the airspeed indicator in full view of the pilot: "DO NOT EXCEED 153 MPH CAS MAXIMUM OPERATING SPEED" The letters on this placard must be at least 1/8 inch in height and on suitable material which can be expected to remain affixed in position and resist deterioration. This placard may be installed by the pilot. b. Within three (3) months after the effective date of this airworthiness directive, accomplish either: 1. Remove red radial marking on airspeed indicator at 162 MPH (141 KTS). Remark indicator with red radial line at 153 MPH (133 KTS). Change Operations Limitations Card as follows: Replace Airspeed Limitations "GLIDE or DIVE-----162 MPH CAS" with "MAXIMUM OPERATING SPEED----153 MPH CAS". Bellanca Service Kit 256 may be used to accomplish this. (Bellanca Service Letter C-127 pertains to this subject.) After marking indicator, the placard required per paragraph (a) above may be removed, or 2. Remove wing front lift struts Bellanca P/N 5-144 and install replacement wing front lift struts Bellanca P/N 5-392 (Bellanca Service Letter C-127 and Service Kit 257 pertain to this subject). After the struts are replaced, the placard per paragraph (a) above may be removed and the airspeed markings and Operations Limitations Card per paragraph (b.1) above may be returned to their original 162 MPH CAS markings. NOTE: The Bellanca P/N 5-392 strut may be identified by a square tube fitting at the wing end. Part II Acrobatic Maneuvers Placard/Accelerometer Markings/Operating Limitations Card Change. Applies to All Bellanca (Champion) Acrobatic Models As Indicated. (Bellanca Service Letter C-128 pertains to this subject.) a. Effective immediately, flight operations shall be conducted in accordance with the limitations specified below. b. Within three (3) months after the effective date of this airworthiness directive unless already accomplished, replace the acrobatic maneuvers placard and remark the accelerometer if applicable as indicated below. 1. For Model 7ECA - S/Nos. 1 thru 722, 725, 723-70 thru 1238-78 7GCAA - S/Nos. 1 thru 198, 200 thru 204, 276, 205-70 thru 355-78 Install Bellanca placard (Bellanca Service Kit 258) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below. LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION DO NOT EXCEED +5.0 OR -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITIONS. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. CAUTION: NEGATIVE G FLIGHT WILL CAUSE LOSS OF OIL AND OIL PRESSURE. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 2. For Model 7GCBC - S/NOS. 1 THRU 201, 205, 207, 202-70 thru 1024- 78 7GCB - Aircraft approved in acrobatic category only Install Bellanca placard (Bellanca Service Kit 259) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below. LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION DO NOT EXCEED +5.0 OR -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. CAUTION: NEGATIVE G FLIGHT WILL CAUSE LOSS OF OIL AND OIL PRESSURE. USE OF FLAPS DURING ACROBATICS PROHIBITED. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 3. For Model 7KCAB - S/Nos. 1 thru 208, 210 thru 226, 270, 271, 209-70 thru 404-73, 405-74 thru 458-74, 460-74 thru 508-75 Install Bellanca placard (Bellanca Service Kit 260) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below: LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION LEVEL INVERTED FLIGHT 120 104 135 MPH (117 KTS) IAS MAX DO NOT EXCEED +5.0 or -2.0 G LOAD FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. INVERTED FLIGHT LIMITED TO 2 MIN - MONITOR OIL PRESS WHILE INVERTED TO INSURE MINIMUM OF 60 PSI. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 4. For Model 7KCAB - S/Nos. 459-74, 509-75 thru 617-77 Install Bellanca placard (Bellanca Service Kit 261) or facsimile on suitable material which can be expected to remain affixed in position and resist deterioration as shown below LANDPLANE APPROVED FOR ONLY FOLLOWING ACROBATIC MANEUVERS MANEUVER ENTRY SPEED IAS MPH KNOTS CHANDELLE, LAZY EIGHT 120 104 BARREL OR SLOW ROLL 120 104 IMMELMANN 145 126 LOOP OR CLOVER LEAF 140 122 SPLITS 80 70 SNAP ROLL 85 74 HAMMERHEAD TURN 140 122 CUBAN EIGHT 145 126 SPIN SLOW DECELERATION LEVEL INVERTED FLIGHT 120 104 135 MPH (117 KTS) IAS MAX DO NOT EXCEED +5.0 OR -2.0 G FACTOR. DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. DO NOT PERFORM ACROBATICS IN TURBULENT AIR. 2 MIN OF INVERTED FUEL NORMALLY AVAILABLE. MOMENTARY OIL PRESSURE INTERRUPTIONS ARE NORMAL. TO RECOVER FROM SPIN USE FULL OPPOSITE RUDDER AND NEUTRALIZE ELEVATOR. 5. If aircraft is equipped with accelerometer, verify that the red radial marks are installed at +5.0 G and -2.0 G. If markings are incorrect, remark indicator. c. Within the next 30 days after the effective date of this airworthiness directive, unless already accomplished, attach the following placard near the airspeed indicator in full view of the pilot. The placard will be a facsimile of the following on suitable material which can be expected to remain affixed in position and resist deterioration as shown below: "DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION" This placard is available as a part of the Service Kits described in parts (1) through (4) above. d. For Model 7KCAB, within three (3) months after the effective date of this airworthiness directive, verify that the Operating Limitations Card presents the following information. If markings are incorrect, remark Operating Limitations Card. Replacement Operating Limitations Cards are available in Bellanca Service Kit 262. Maneuvering Flight Limit Load Factors Positive ------------------ 5.0 g Negative ---------------- 2.0 g DO NOT EXCEED 135 MPH IAS DURING NEGATIVE G CONDITION. This amendment becomes effective November 7, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.