SDR UIEA2015102600591

Service difficulty report · Shutoff Valve · Boeing 74747UF

Difficulty date: October 24, 2015
Submitted: October 27, 2015
Operation: Air carrier
Aircraft: N492MC
Make and model: Boeing 74747UF
Aircraft serial: 29253
Aircraft time: 73,013 hours, 12,628 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Shutoff Valve
Condition: Faulty
Location: Bleed Air Sys
Stage of operation: TO
How discovered: O
Nature of condition: J
Precautionary procedure: C

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

What was found

BLEED NR 1, EICAS MSG ON BEGINNING OF TAKEOFF ROLL, & DISAPPEARED WHILE CLEARING RNWY, REJECTED TAKEOFF. AFTERWARD, STS MSG, BLEED HP ENG NR 1, THEN AGAIN DURING CLIMB OUT, BLEED NR 1 EICAS MSG AGAIN. PERFORMED NNC DEACTIVATED NR 1 ENG, HPSOV DEFERRED IAW 36-11-03.

More about the Boeing 747-47UF