AD Amdt-39-11839

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 727-100 and -200 Series Airplanes Equipped With an Engine Nose Cowl for Engine Numbers 1 and 3, Installed in Accordance With Supplemental Type Certificate (STC) SA4363NM

AD Number
Amdt-39-11839
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 2000-NM-249-AD
FR Citation
65 FR 46861

Applicability

TypeManufacturerModelDetails
aircraft Boeing 727-100 and -200 Airworthiness Directives; Boeing Model 727-100 and -200 Series Airplanes Equipped With an Engine Nose Cowl for Engine Numbers 1 and 3, Installed in Accordance With Supplemental Type Certificate (STC) SA4363NM

Unsafe Condition

Loosening of the attach bolts on the engine nose cowl, which could result in subsequent separation of the nose cowl from the engine.

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

Required Actions

Replace the attaching nutplates of the No. 1 and No. 3 engine nose cowls with washers and self-locking nuts in accordance with VALSAN B727-RE Service Bulletin 71-006, Revision 1, dated March 3, 1995. No person shall install a nose cowl having VALSAN part number 259-0002-501 or 259-0002-503 on any airplane as of October 20, 1995.

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

Compliance Time

Within 12 months after October 20, 1995 (the effective date of AD 95-19-08, amendment 39-9370).

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Affected Aircraft

Boeing Model 727-100 and -200 series airplanes equipped with an engine nose cowl for engine numbers 1 and 3, installed in accordance with Supplemental Type Certificate (STC) SA4363NM, certificated in any category.

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

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