AD 2011-04-10

Recurring final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Model 737-300, -400, and -500 Series Airplanes

AD Number
2011-04-10
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2010-0379
FR Citation
76 FR 9498

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Model 737-300 Airworthiness Directives; The Boeing Company Model 737-300, -400, and -500 Series Airplanes

Unsafe Condition

Corrosion found on carriage spindles located on the outboard trailing edge flaps, which could result in fracture.

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

Required Actions

Inspect to determine if certain carriage spindles are installed. Replace affected carriage spindles with non-HVOF-coated spindles, new or serviceable HVOF-coated spindles not listed in Table 2 or 3 of Appendix A of Boeing Service Bulletin 737-57A1304, Revision 1, or serviceable HVOF-coated spindles with an 'R' suffix on the serial number.

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

Compliance Time

Within 12 months of the effective date (March 25, 2011).

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

Affected Aircraft

The Boeing Company Model 737-300, -400, and -500 series airplanes, 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

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

View Official Source ↗ Find More ADs for Boeing Company Model 737-300

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