SDR ASAA2023103046022

Service difficulty report · Valve · Boeing 737990ER

Difficulty date: October 30, 2023
Submitted: November 7, 2023
Operation: Air carrier
Aircraft: N483AS
Make and model: Boeing 737990ER
Aircraft serial: 36350
Aircraft time: 30,321 hours, 9,483 cycles
System (JASC): 2421 · AC Generator-Alternator
Part: Valve
Part number: 5911232
Condition: Leaking
Location: #2 Engine
Stage of operation: IN
How discovered: O
Nature of condition: K
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOLLOW-UP TO #2 ENGINE IDG FREQUENT SERVICING----(#PRI2)-----. GROUNDED - YES. (RESOLVED ON W/O: 1975479 TASKCARD: N/R-00001 ) PERFORMED IDG STATIC LEAK CHECK ON #2 ENGINE REF AMM 24-11-00. FOUND SLIGHT LEAKAGE FROM PUSH TO VENT VALVE. NO LEAKAGE FROM SERVICING PORT. REMOVED & REPLACED VENT VALVE REF AMM 24-11-00. LEAK CHECK GOOD. C/W STEP 2 OF TSR, NO ABNORMAL FINDINGS. THIS CLEARS TSR. SEAMC DARWIN NOTIFIED.