AD 98-14-09

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 737-100, -200, -200C Series Airplanes

AD Number
98-14-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
98-NM-121-AD
FR Citation
(Federal Register: July 02, 1998 (Volume 63, Number 127))

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company 737-100 Series Airworthiness Directives; Boeing Model 737-100, -200, -200C Series Airplanes
aircraft The Boeing Company 737-200 Series Airworthiness Directives; Boeing Model 737-100, -200, -200C Series Airplanes
aircraft The Boeing Company 737-200C Series Airworthiness Directives; Boeing Model 737-100, -200, -200C Series Airplanes

Unsafe Condition

Fatigue cracking of the lower flange of the forward engine mount support (FEMS) fitting, fractured or loose bolts at the upper inboard attachment, and cracked or severed lugs at the upper outboard support link attachment could result in in-flight engine separation.

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

Required Actions

Conduct repetitive detailed visual inspections and ultrasonic inspections of the FEMS fitting and its attachments to detect fatigue cracking and discrepancies. Repair or replace components as necessary, including installing newer-type FEMS fittings or serviceable older-type fittings. Report adverse findings to the FAA.

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

Compliance Time

Before further flight unless otherwise specified in the service bulletins referenced in the AD.

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

Affected Aircraft

Boeing Model 737-100, -200, and -200C Series airplanes with affected forward engine mount support (FEMS) fittings.

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

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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