AD 71-17-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 337 | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337A | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337B | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337C | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337D | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337E | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337F | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337G | Airworthiness Directives; CESSNA Model 337 Airplanes |
| aircraft | Cessna Aircraft Company | 337H | Airworthiness Directives; CESSNA Model 337 Airplanes |
Unsafe Condition
Rear engine stoppage on take-off
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Readjust rear engine idle RPM from 575-625 to 625-675 and idle mixture, taxi primarily using the rear engine, initiate take-offs by advancing rear engine throttle to confirm normal function before front engine, and install a permanent placard with specified text near the tachometer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Model 337 (all submodels: 337, 337A to 337H)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Rear Engine Stoppage On Take Off
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-17-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 337 Airplanes Subject: Rear Engine Stoppage On Take Off Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/24/1971 Make: Cessna Aircraft Company Model: 337 | 337A | 337B | 337C | 337D | 337E | 337F | 337G | 337H 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: 71-17-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1273 AD NUMBER: 71-17-08 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 337 Airplanes ACTION: SUMMARY: DATES: Effective August 24, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-08 CESSNA: Amdt. 39-1273. Applies to Model 337 Airplanes. Compliance. To minimize the possible adverse affects of undetected rear engine stoppage during take-off, within the next 10 hours' time in service after the effective date of this AD, the following modifications must be accomplished and the following operational procedures will be applicable: A) Readjust the rear engine idle RPM from 575-625 to 625-675 and readjust idle mixture accordingly. B) Taxi primarily by use of the rear engine. C) Initiate all take-offs by advancing the throttle on the rear engine to a point where the normal functioning of the rear engine has been established before advancing the throttle of the front engine. D) Install a permanent placard to the right of the tachometer instrument to read as follows: TAXI AND TAKE-OFF LEAD WITH REAR ENGINE POWER CHECK RPM AND FUEL FLOW NOTE: The operator may make and install a temporary placard using minimum 1/8 inch high letters until the permanent placard is obtained from the manufacturer and properly installed. Cessna Service Letter ME 71-21 refers to the subject matter of this AD. This amendment becomes effective August 24, 1971. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_71-17-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 337 Airplanes Subject: Rear Engine Stoppage On Take Off Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/24/1971 Make: Cessna Aircraft Company Model: 337 | 337A | 337B | 337C | 337D | 337E | 337F | 337G | 337H 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: 71-17-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1273 AD NUMBER: 71-17-08 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 337 Airplanes ACTION: SUMMARY: DATES: Effective August 24, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-08 CESSNA: Amdt. 39-1273. Applies to Model 337 Airplanes. Compliance. To minimize the possible adverse affects of undetected rear engine stoppage during take-off, within the next 10 hours' time in service after the effective date of this AD, the following modifications must be accomplished and the following operational procedures will be applicable: A) Readjust the rear engine idle RPM from 575-625 to 625-675 and readjust idle mixture accordingly. B) Taxi primarily by use of the rear engine. C) Initiate all take-offs by advancing the throttle on the rear engine to a point where the normal functioning of the rear engine has been established before advancing the throttle of the front engine. D) Install a permanent placard to the right of the tachometer instrument to read as follows: TAXI AND TAKE-OFF LEAD WITH REAR ENGINE POWER CHECK RPM AND FUEL FLOW NOTE: The operator may make and install a temporary placard using minimum 1/8 inch high letters until the permanent placard is obtained from the manufacturer and properly installed. Cessna Service Letter ME 71-21 refers to the subject matter of this AD. This amendment becomes effective August 24, 1971. 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.
Related Airworthiness Directives
2011-15-11
final ruleAirworthiness Directives; Cessna Aircraft Company (Cessna) Models 337, 337A (USAF 02B), 337B, 337C, 337D, 337E, T337E, 337F, T337F, 337G, T337G, M337B, F 337E, FT337E, F 337F, FT337F, F 337G, and FT337GP Airplanes
Unsafe Condition: Damage in the wings or overload failure of the wing due to the installation of Flint Aero, Inc. wing tip auxiliary fuel tanks, STC SA5090NM, could result in structural failure of the wing, which co...
2011-10-09 Recurring
final ruleAirworthiness Directives; Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 Airplanes
Unsafe Condition: Excessive wear on seat rail and seat rail holes, seat pin engagement, seat rollers, washers, axle bolts or bushings, wall thickness of roller housing and the tang, and lock pin springs may lead to ...
2010-21-18
final ruleAirworthiness Directives; Cessna Aircraft Company (Cessna) Models 336, 337, 337A (USAF 02B), 337B, M337B (USAF 02A), T337B, 337C, T337C, 337D, T337D, 337E, T337E, 337F, T337F, 337G, T337G, 337H, P337H, T337H, T337H-SP, F337E, FT337E, F337F, FT337F, F337G, FT337GP, F337H, and FT337HP Airplanes
Unsafe Condition: Cracks in the upper wing skins just outboard of the fuel tank access covers, potentially leading to structural failure of the wing and loss of control.
2008-26-10
final ruleAirworthiness Directives; Cessna Aircraft Company 172, 175, 177, 180, 182, 185, 188, 206, 207, 208, 210, 303, 336, and 337 Series Airplanes
Unsafe Condition: Obstruction of the alternate static air source selector valve port by the part number identification placard, which could result in erroneous indications from the altimeter, airspeed, and vertical ...