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SDR UIEA2020100862180

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Service difficulty report · Isolation Valve · Boeing 76736N

FAA SDR system

Difficulty date
October 6, 2020
Submitted
October 8, 2020
Operation
Air carrier
Aircraft
N1093A
Make and model
Boeing 76736N
Aircraft serial
30111
Aircraft time
82,439 hours, 12,009 cycles
System (JASC)
3610 · Pneumatic Distribution System
Part
Isolation Valve
Part number
2780539104
Part serial
2546
Condition
Leaking
Stage of operation
TX
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

SINGLE ENGINE TAXI IN, OPENED BOTH ISOLATION VALVES AND GET AN "L ISLN BLD VLV" EICAS AS THE LT ISOLATION VALVE DIDN`T OPEN. RAN FIM 36-10 FT 827 UP TO STEP 14, PROBLEM NOT INDICATION, SUSPECTED SLIGHT LEAK FROM ISOLATION VALVE LEFT. REMOVED AND REPLACED LT ISOLATION VALVE, IAW 36-11-04. OPS CHECK GOOD.

More about the Boeing 767-36N