AD 99-21-12

final rule
Data completeness: 70%

Airworthiness Directives; British Aerospace (Jetstream) Model 4101 Airplanes

AD Number
99-21-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
99-NM-115-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft BAE Systems (Operations) Limited Jetstream Model 4101 Airworthiness Directives; British Aerospace (Jetstream) Model 4101 Airplanes

Unsafe Condition

Electrical arcing due to damaged fuel standby pump cable assemblies and conduit pipes, which could create a possible ignition source and consequent fire hazard.

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

Required Actions

Within 6 months after the effective date, perform a one-time visual inspection of the conduit pipes for distortion or repairs. Replace the conduit pipe with new parts if distortion or repairs are found before further flight. Replace fuel standby pump cable assemblies with new assemblies part number F5-71-1.

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

Compliance Time

Within 6 months after the effective date

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

Affected Aircraft

Jetstream Model 4101 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 8, 2026

Rights: U.S. Government Public Domain

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