Service difficulty report · Bleed Valve · Boeing 7673JHF

Difficulty date
March 24, 2021
Submitted
March 29, 2021
Operation
Air carrier
Aircraft
N643GT
Make and model
Boeing 7673JHF
Aircraft serial
37809
Aircraft time
20,383 hours, 5,394 cycles
Part
Bleed Valve
Part number
97980612
Part serial
1688C
Condition
Faulted
Location
Apu
Stage of operation
TX
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

START VALVE LIGHT REMAINS ON BLEED AIR DROPS AND ENGINE N2 STOPS AT 14%.(<P>DEFERRED TO MEL 49-11-01A AND INSTALLED PLCD. CAT "C" PER DMI # 144280(M) PROCEDURE COMPLIED WITH. NOTIFIED TO MCC. T/I: JA 09:16Z.</P><P>ICN, 27MAR LP 1442679: T/S FOUND SURGE CONT VLV IS SOMETIMES INCORRECTLY OPEN & SURGE DUCT PUNCTURED, SO, REMOVED & REPLACED WITH SURGE CONT VLV & SURGE DUCT (P/N 23884292-2) THEN LEAK OPER & BITE CHK NORMAL IAW 49-53-01. CLEARED MDDR 144280, NOTIFIED MCC. T&I: DT 1017.</P>)

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