SDR IPXA2015072291416

Service difficulty report · Controller · Boeing 747428F

Difficulty date: July 17, 2015
Submitted: July 22, 2015
Operation: Air carrier
Aircraft: N580UP
Make and model: Boeing 747428F
Aircraft serial: 25632
Aircraft time: 89,558 hours, 15,627 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Controller
Condition: Inoperative
Location: Bleed Sys
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: J

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

What was found

DIVERSION, RECEIVED BLEED 1 ADVISORY EICAS MSG AND BLEED OVERPRESS 1 STATUS LVL MESSAGE. FOUND CMC FAULT MSG 36226, PRV & CONTROLLER FAIL. R & R WITH NEW PRV & CONTROLLER IAW AMM 36-11-13 & 36-11-20. THEN OPS TEST OF NR 1 ENGINE PRV WITH ENGINE IDLE RUN . WORKS NORMALLY. LEAK CHECKS OK. OK FOR SVC PRV ON /OFF PN:802170-12, SN OFF:2008060601. ON SN:2008031114. CONTROLLER ON/OFF, PN:792755-15.