AD 2003-03-09

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes

AD Number
2003-03-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2001-NM-172-AD
FR Citation
68 FR 4911

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas MD-90-30 Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes

Unsafe Condition

Failure of a single-phase remote control circuit breaker (RCCB) to trip during an overload condition due to a defective braze joint in the RCCB latch assembly, which could result in overheating of the RCCB load wire, and consequent smoke and possible fire in the electrical/electronic (E/E) compartment.

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

Required Actions

Inspect the single-phase remote control circuit breaker(s) (RCCBs) in a certain area of the E/E compartment to determine the part number and serial number. Replace certain RCCBs with new or serviceable RCCBs, if necessary.

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

Compliance Time

Within 50 flight hours after the effective date of this AD.

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

Affected Aircraft

McDonnell Douglas Model MD-90-30 airplanes with the specified single-phase remote control circuit breaker(s) (RCCBs) in the affected area of the E/E compartment.

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.