SDR ASAA2012081392714

Service difficulty report · Unknown · Boeing 737890

Difficulty date: August 1, 2012
Submitted: August 17, 2012
Operation: Air carrier
Aircraft: N589AS
Make and model: Boeing 737890
Aircraft serial: 35686
Aircraft time: 17,978 hours, 5,688 cycles
Engine: Cfmint CFM567B27
System (JASC): 5100 · Standard Practices/Structures
Part: Unknown
Condition: Leaking
Stage of operation: IN
How discovered: V
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

FOUND OIL LEAKING FROM MIDDLE DRAIN OF APU IAW 05-60-00-280-801CSTEP A.(2) (C) APU REQS REPLACEMENT. BLACK LIGHT TEST OF SWABS FROM LOAD COMPRESSOR DRAIN DID NOT PROVIDE CONCLUSIVE EVIDENCE OF OIL CONTAMINATION. RAN APU WITH RT PACK ON FOR 30 MINUTES. NO ABNORMAL ODOR DETECTED. BOROSCOPED LOAD COMPRESSOR FOR EVIDENCE OF OIL. NO CONTAMINATION FOUND. LEAK & OPS CHECKED OK REF MM 49-21-00-200-801 STEPS H(1)-H(2). SWABBED MIDDLE DRAIN, NO OIL FOUND. REF MM 49-16-11.