SDR WX0A2015100572918

Service difficulty report · Controller · Doug DC983

Difficulty date: October 1, 2015
Submitted: October 5, 2015
Operation: Air carrier
Aircraft: N868GA
Make and model: Doug DC983
Aircraft serial: 49554
Aircraft time: 59,280 hours, 40,499 cycles
System (JASC): 2131 · Cabin Pressure Controller
Part: Controller
Part number: 21171802
Part serial: 591901
Condition: Faulty
Location: Cabin Pressure
Stage of operation: CR
How discovered: O
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

DURING DESCENT THE ACFT WAS UNABLE TO MAINTAIN CABIN PRESS, BETWEEN 33,000 FT & APPROX 22,000 FT, FLOW LIGHT WAS ON THE ENTIRE TIME. R & R NR 1 CABIN PRESS CONTROLLER & PERFORMED BITE TEST IAW AMM 21-32-00 & AMM 21-32-03. NO DEFECTS NOTED. PERFORMED NR 1 CABIN PRESS CONTROLLER LEAK & STATIC SYS. LEAK CHECKED GOOD AT THIS TIME IAW AMM 34-11-00.

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