Service difficulty report · Shutoff Valve · Boeing 7572Y0

Difficulty date
September 10, 2019
Submitted
September 25, 2019
Operation
Air carrier
Aircraft
N974FD
Make and model
Boeing 7572Y0
Aircraft serial
26158
Aircraft time
72,220 hours, 24,812 cycles
Part
Shutoff Valve
Part number
32143069
Condition
Inoperative
Location
Bleed Air Sys
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

PDIS 974 36-10 5902 10SEP19 CDG OPEN U LOGPAGES:3010680 REJECTED TAKEOFF FOR " L ENG BLEED OFF " AFTER ENGINE REDUCED IDLE EICAS MESSAGE REMOVED. GOT EICAS MESSAGE ON SECOND TAKEOFF AND AFTER AIRBORNE RAN QRH AND SELECTED LEFT ENGINE BLEED AIR OFF. PRESSURE GAUGE SHOWS 48 PSI FOR BOTH ENGINES. "MEL 36-11-01: LEFT PRESSURE REGULATING AND SHUTOFF VALVES - INOP CLOSED. A/C MAX FL350. AIRCRAFT RESTRICTED FROM OPERATING INTO KNOWN OR FORECAST ICING CONDITIONS. REFER TO THE OPERATIONS NOTE FOR DRY ICE RESTRICTIONS." *MOCC UPDATE* PLEASE WORK IN CONJUNCTION WITH TSI: 36-10/5903. *THANKS MOCC TECH SERVICES* ACT 11SEP19 15:56 LT PRSOV REPLACED IAW AMM 36-11-09-2-1 TEST PERFORMED ALL PARAMETERS OK IAW AMM 36-11-00-5 OPS CHECK OK.

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