SDR UIEA2019083105410

Service difficulty report · Tru · Boeing 767306

Difficulty date: August 31, 2019
Submitted: September 4, 2019
Operation: Air carrier
Aircraft: N1427A
Make and model: Boeing 767306
Aircraft serial: 28098
Aircraft time: 79,652 hours, 17,028 cycles
System (JASC): 2433 · DC Rectifier/Converter
Part: Tru
Part number: 28VS200Y4B2
Part serial: 448A
Condition: Faulty
Location: Apu
Stage of operation: LD
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

APU FAILED TO START, APU FAULT MESSAGE. TRANSFERRED TO MDDR 117125 IAW MEL 49-11-01A, CAT 'C', DUE 10-SEP-19. LP 1073215 - M2: T/S PER FIM TASK 49-11 FAULT TREE 991, FOUND FAULTY APU TRU. REMOVED AND REPLACED APU TRU IAW AMM 24-32-04. OPS CHECK GOOD, NO FAULTS AT THIS TIME. THIS CLEARS MDDR 117125. MCC NOTIFIED AND ALL PLACARDS REMOVED.