Service difficulty report · Switch · Boeing 757222

Difficulty date
November 18, 2008
Submitted
November 21, 2008
Operation
Air carrier
Aircraft
N551UA
Make and model
Boeing 757222
Aircraft serial
25399
Aircraft time
64,584 hours, 18,644 cycles
Engine
Pwa PW2037
Part
Switch
Part number
214C401110
Condition
Failed
Location
Crew O2
Stage of operation
IN
How discovered
C
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

THE O2 SYSTEM FAILS ALTITUDE SWITCH, OPS CHECKS. REPLACED ALTITUDE PRESSURE SWITCH, OPS CHECKS GOOD.