SDR IPXA2023063066113

Service difficulty report · Indicator · Boeing 75724APF

Difficulty date: June 23, 2023
Submitted: June 30, 2023
Operation: Air carrier
Aircraft: N426UP
Make and model: Boeing 75724APF
Aircraft serial: 25457
Aircraft time: 31,338 hours, 21,205 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Indicator
Part number: SETLOC420M
Part serial: 569
Condition: Inoperative
Location: Unknown
Stage of operation: CL
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

*SUPPLEMENTAL RVSM* CABIN ALTITUDE INDICATOR READS APPROX 1500Â€™ WHEN IT SHOULD BE APPROX 500Â€™ **OII 2** ++ PERFORMED OPS CK OF PRESS AND IND. WARNING MODULE REF AMM 21-33-01-404, OPS CK GOOD AT THIS TIME, SUSPECT INTERMITTENT FAIL. OPDERED IND PNL AND DIFF PRESS SENSOR PRECAUTIONARY

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