Service difficulty report · Pneumatic System · Boeing 757251

Difficulty date
July 14, 2009
Submitted
July 16, 2009
Operation
Air carrier
Aircraft
N523US
Make and model
Boeing 757251
Aircraft serial
23617
Aircraft time
73,125 hours, 30,257 cycles
Part
Pneumatic System
Condition
Malfunctioned
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
B, A

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

What was found

UPON DEPARTURE FROM TPA THE CREW LOST THE RIGHT ENGINE PNEUMATIC BLEED AND WAS UNABLE TO RESET IT PER THE COM PROCEDURE AND LATER LOST THE LEFT PNEUMATIC BLEED DURING CLIMB. WITH BOTH PNEUMATIC BLEEDS INOPERATIVE THE FLIGHT CREW DECLARED AN EMERGENCY WITH ATC AND INITIATED AN EMERGENCY DESCENT AS THEY BEGAN TO LOSE CABIN PRESSURE. THE FLIGHT RETURNED TO TPA AND LANDED UNEVENTFULLY. AS OF THIS WRITING, MAINTENANCE IS STILL IN THE PROCESS OF REPAIRING THE AIRCRAFT.