SDR UIEA2021071701579

Service difficulty report · Shutoff Valve · Boeing 76737D

Difficulty date: July 16, 2021
Submitted: July 19, 2021
Operation: Air carrier
Aircraft: N1327A
Make and model: Boeing 76737D
Aircraft serial: 26328
System (JASC): 3610 · Pneumatic Distribution System
Part: Shutoff Valve
Part number: 79027014
Part serial: 890439
Condition: Malfunctioned
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

EICAS MSG. IN CRUISE AFTER CYCLING THE ENG. ANTI-ICE OFF-ON-OFF R ENG. HPSOV RAN QRH. MSG BLANKED THEN REAPPEARED.(<P>TRANSFERRED TO MDDR 150273 PER 36-11-02-02, CAT C, DUE 26JUL21.</P> / <P>REF L/P 1399105: REMOVED AND REPLACED R ENG. HPSOV REF AMM 36-11-03. OPS AND LEAK CHECKS GOOD. MDDR 150273 CLOSED. PLACARDS REMOVED.</P>)

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