SDR HALA2009092500439

Service difficulty report · Bleed Air Sys · Boeing 76733A

Difficulty date: September 25, 2009
Submitted: September 28, 2009
Operation: Air carrier
Aircraft: N582HA
Make and model: Boeing 76733A
Aircraft serial: 28141
Aircraft time: 28,916 hours, 5,549 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Bleed Air Sys
Condition: Fluctuates
Location: Rt Engine
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

ETOPS SIGNIFICANT SYS - IN CRUISE FLT AT 370, R BLEED FLUCTUATES BTWN 32 AND 37 PSI, L BLEED INDICATES 20 SPI. WITH L SILN VALVE OPEN, BOTH INDICATE 35 PSI. WITH R ISL VALVE OPEN, NO CHANGE R 32-35 L 20. NOTED WITHIN LIMITS IAW A, 36-11-00. OK FOR SERVICE.

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