SDR UIEA2020092512029

Service difficulty report · Indication Sys · Boeing 767324

Difficulty date: September 21, 2020
Submitted: September 25, 2020
Operation: Air carrier
Aircraft: N645GT
Make and model: Boeing 767324
Aircraft serial: 27393
Aircraft time: 99,688 hours, 19,177 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Indication Sys
Condition: Malfunctioned
Location: Lt Hpsov
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

LEFT HPSOV CLOSED AND OPEN SWITCHES DISAGREE. CHECKED TERMINAL CONDITION AT HPSOV, FOUND OK. CHECKED WIRING, PER WDM 36-11-61. WIRING CHECKED OK. PERFORMED OPERATION TEST AIR SUPPLY DISTRIBUTION SYS OK, PER AMM 36-11-00-715. ENG LEFT RUN UP OK, NO MSG, PER AMM 71-00-00.