SDR EISA98215

Service difficulty report · Switch · Doug DC931

Difficulty date
September 9, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N977ML
Make and model
Doug DC931
Aircraft serial
47329
Part
Switch
Part number
980871173T1111
Condition
Inoperative
Location
Rt Pack
Stage of operation
CL
Nature of condition
O
Precautionary procedure
A

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

What was found

RIGHT SIDE A/C PACK SHUT DOWN AT 35,000 FT, CABIN PRESSURE WARNING LIGHT CAME ON, PRESSURE ALTITUDE INDICATED 7000 FT IN THE CABIN. RETURNED TO EL PASO. GENERATED FROM PILOT REPORT. DETERMINED 2 SWITCHES BAD ON A/C SYSTEM REMOVED AND REPLACED 190 DEGREES SWITCH AND COMPRESSOR DISCHARGE SWITCH IAW MM 21-00. (M)

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