SDR 2008FA0000428

Service difficulty report · Light · Boeing 767241

Difficulty date: June 10, 2008
Submitted: July 15, 2008
Operation: General aviation
Aircraft: N770QT
Make and model: Boeing 767241
Aircraft serial: 23802
Engine: Ge CF680C2*
System (JASC): 3420 · Attitude and Direction Data System
Part: Light
Condition: Illuminated
Location: Altitude Indicat
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

CABIN ALT AND CABIN ALTITUDE LIGHTS ILLUM, EICAS MSG CABIN ALTITUDE WAS DISPLAYED. UNABLE TO RESTORE CABIN PRESS USING MANUAL MODE. AIRPLANE RETURNED TO DEPARTURE. IAW FIM 21-31-00, FIG 103 BLOCKS 1,2,22,23,23A, 24, 44, PLN U3 IN CONNECTOR D2712A WAS REPAIRED. REF WDM 21-31-11/21-31-21. TEST WITH AIRCRAFT PRESSURIZED ON GROUND IS SATISFACTORY. (K)