SDR AALA202002059015

Service difficulty report · Gasket · Boeing 757223

Difficulty date: February 4, 2020
Submitted: February 7, 2020
Operation: Air carrier
Aircraft: N199AN
Make and model: Boeing 757223
Aircraft serial: 32393
Aircraft time: 58,235 hours, 16,592 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Gasket
Condition: Leaking
Location: Rt A/C Pack
Stage of operation: CL
How discovered: O
Nature of condition: O
Precautionary procedure: B, A

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

What was found

AIRCRAFT WAS GROUNDED: DIVERTED TO GYE, CABIN ALTITUDE WITH CABIN ULTIMATELY BETWEEN 11000-12000. DEPLOYED PASS OXYGEN AS PER EMERGENCY DESCENT.***SUPPLEMENTAL ACTION SECT. 4, 5: REPOSITIONED AND SECURED BOOT ON THE R/H PACK, REPLACED R/H PACK WATER DRAIN LINE IAW AMM 21-51-00.ALSO REPLACED LEAKING GASKETS FOR THE R/H AIR SUPPLY UNDER WING VALVE ASSY IAW AMM 36-11-03. ACCOMPLISHED PACK OPS AND CABIN LEAK CKS, ALL CHD NORMAL IAW AMM 21-31-00.***(CLOSED)