AD 2010-21-18

final rule
Data completeness: 70%

Airworthiness 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

AD Number
2010-21-18
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2010-1013
FR Citation
75 FR 64111

Applicability

TypeManufacturerModelDetails
aircraft Cessna Various Airworthiness 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
aircraft Aviat Various Airworthiness 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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the wings for internal and external damage, repair any damage found, install an operational limitation placard in the cockpit, add limitations to the flight manual supplement, and report the inspection results to the FAA if damage is found.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Cessna Aircraft Company 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 modified with Aviation Enterprises Supplemental Type Certificates SA02055AT, SA02056AT, SA02307AT, or SA02308AT.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for Cessna Various