SDR ASAA0540555

Service difficulty report · Switch · Boeing 737490

Difficulty date: October 18, 2005
Submitted: January 13, 2006
Operation: Air carrier
Aircraft: N706AS
Make and model: Boeing 737490
Aircraft serial: 28894
System (JASC): 3260 · Landing Gear Position and Warning
Part: Switch
Condition: Failed
Location: Ground Safety
Stage of operation: CR
How discovered: O
Nature of condition: G
Precautionary procedure: O

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

What was found

PHX - AT 31,000 FEET AFTER 90 MINUTES IN CRUISE, PRESSURIZATION FAILED. AUTO THROTTLE AND TRANSPONDER FAILED AT SAME TIME. AUTO SPEED BRAKE WARNING LIGHT ILLUMINATED ALSO. REPLACED GROUND SAFETY SWITCH S-105, PER AMM 32-09-01. ALSO REFERENCE EA 3209-01001 FOR GROUND SAFETY SWITCH CLARIFICATION. SYSTEM OPS TEST NORMAL IAW AMM 32-09-01 PAGES 501-505. (M)