SDR HALA2018072300329

Service difficulty report · Apu · Boeing 76733A

Difficulty date: July 20, 2018
Submitted: July 23, 2018
Operation: Air carrier
Aircraft: N583HA
Make and model: Boeing 76733A
Aircraft serial: 25531
Aircraft time: 106,870 hours, 19,316 cycles
System (JASC): 4920 · APU Core Engine
Part: Apu
Part number: 38002981
Part serial: P2916
Condition: Defective
Location: Apu Bay
Part time: 4,344 hours, 4,782 cycles
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

ETOPS SIGNIFICANT SYSTEM, THE APU INSTALLED IN THIS AIRCRAFT IS VERY WEAK, WITH UNUSUALLY SLOW STARTS, LOW MAX MOTORING AND HIGH EGT AT 34 DEG C OAT DUCT PRESSURE IS ONLY 15 PSI, WELL BELOW MIN REC FOR START. REMOVED & REPLACED APU PER M266-767. OPS & LEAK CHECK OK. OK FOR SERVICE.

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