AD 84-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105A | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters |
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105C | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters |
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105S | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters |
Unsafe Condition
Tail rotor blade tip area cracks could result in blade failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a visual check of each tail rotor blade tip area (approximately 100MM from end cap inward) before further flight. Repeat the check before each subsequent flight until affected blades are replaced. Replace cracked blades with serviceable ones before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
MESSERSCHMITT-BOLKOW-BLOHM Model BO-105A, BO-105C, BO-105S helicopters equipped with tail rotor blades of serial numbers listed in the AD (specific serial numbers include 115, 118, 219, 224, 387, 395, 581, 608, 615, 650 for 105-31743 and 64, 86, 124, 127, 130, 131, 143, 147, 152, 158, 179, 180, 210, 211, 216, 217, 219, 220, 240, 246, 256, 262, 265, 266, 267, 269, 295, 342, 344, 372, 383, 390, 394, 414, 425, 433, 437, 438, 442, 444, 461, 467, 489, 491, 495, 499, 504, 506, 514, 516, 517, 528, 538, 543, 552, 556, 588, 591, 596, 601, 603, 607, 846, 936, 1065, 1174, 1175, 1199, 1234, 1235, 1237, 1270, 1300 for 105-31744).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Tail Rotor Blade Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_84-16-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-16-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters Subject: Tail Rotor Blade Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Airbus Helicopters Deutschland GmbH Model: BO-105A | BO-105C | BO-105S Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-16-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 84-16-01 SUBJECT HEADING: Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-16-01 MESSERSCHMITT-BOLKOW-BLOHM: Letter issued August 7, 1984. Applies to MBB Model BO 105 series helicopters certificated in all categories that are equipped with the following tail rotor blades: 105-31743 Serial Nos.: 115, 118, 219, 224, 387, 395, 581, 608, 615, 650. 105-31744 (Modification of 105-31742) Serial Nos.: 64, 86, 124, 127, 130, 131, 143, 147, 152, 158, 179, 180, 210, 211, 216, 217, 219, 220, 240, 246, 256, 262, 265, 266, 267, 269, 295, 342, 344, 372, 383, 390, 394, 414, 425, 433, 437, 438, 442, 444, 461, 467, 489, 491, 495, 499, 504, 506, 514, 516, 517, 528, 538, 543, 552, 556, 588, 591, 596, 601, 603, 607, 846, 936, 1065, 1174, 1175, 1199, 1234, 1235, 1237, 1270, 1300. Compliance required as indicated. (A) Before further flight, perform a visual check of each tail rotor blade tip area (approximately 100MM (4 inches) from end cap inward) for cracks. (B) Repeat the check of Paragraph (A) before each subsequent flight until the affected blades are replaced. (C) Replace cracked tail rotor blades with serviceable blades before further flight. (D) The check required by Paragraph (A) of this AD is not considered to be maintenance or preventive maintenance, and may be performed by the pilot, however, the person performing this check shall make an entry in the aircraft maintenance records containing the following information: The name of the person who performed the check, the date the check was accomplished, the signature, certificate number, and kind of certificate held by the person performing the check. (E) An equivalent method of compliance with this AD may be used when approved by the Manager, Aircraft Certification Division, FAA, Southwest Region, P.O. Box 1689, Fort Worth, Texas 76101. NOTE: MBB Alert Bulletin No. 23 applies to this inspection. This airworthiness directive becomes effective upon receipt. FOOTER:
Document Text
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AD Final Rules - DRS_84-16-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-16-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters Subject: Tail Rotor Blade Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Airbus Helicopters Deutschland GmbH Model: BO-105A | BO-105C | BO-105S Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-16-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 84-16-01 SUBJECT HEADING: Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO 105 Series Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-16-01 MESSERSCHMITT-BOLKOW-BLOHM: Letter issued August 7, 1984. Applies to MBB Model BO 105 series helicopters certificated in all categories that are equipped with the following tail rotor blades: 105-31743 Serial Nos.: 115, 118, 219, 224, 387, 395, 581, 608, 615, 650. 105-31744 (Modification of 105-31742) Serial Nos.: 64, 86, 124, 127, 130, 131, 143, 147, 152, 158, 179, 180, 210, 211, 216, 217, 219, 220, 240, 246, 256, 262, 265, 266, 267, 269, 295, 342, 344, 372, 383, 390, 394, 414, 425, 433, 437, 438, 442, 444, 461, 467, 489, 491, 495, 499, 504, 506, 514, 516, 517, 528, 538, 543, 552, 556, 588, 591, 596, 601, 603, 607, 846, 936, 1065, 1174, 1175, 1199, 1234, 1235, 1237, 1270, 1300. Compliance required as indicated. (A) Before further flight, perform a visual check of each tail rotor blade tip area (approximately 100MM (4 inches) from end cap inward) for cracks. (B) Repeat the check of Paragraph (A) before each subsequent flight until the affected blades are replaced. (C) Replace cracked tail rotor blades with serviceable blades before further flight. (D) The check required by Paragraph (A) of this AD is not considered to be maintenance or preventive maintenance, and may be performed by the pilot, however, the person performing this check shall make an entry in the aircraft maintenance records containing the following information: The name of the person who performed the check, the date the check was accomplished, the signature, certificate number, and kind of certificate held by the person performing the check. (E) An equivalent method of compliance with this AD may be used when approved by the Manager, Aircraft Certification Division, FAA, Southwest Region, P.O. Box 1689, Fort Worth, Texas 76101. NOTE: MBB Alert Bulletin No. 23 applies to this inspection. This airworthiness directive becomes effective upon receipt. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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