SDR RU3A1010

Service difficulty report · Switch · Beech 300BEECH

Difficulty date: March 22, 2010
Submitted: March 24, 2010
Operation: Air carrier
Aircraft: N72
Make and model: Beech 300BEECH
Aircraft serial: FF7
Aircraft time: 11,931 hours, 6,509 cycles
System (JASC): 5270 · Door Warning System
Part: Switch
Condition: Out Of Adjust
Location: Cabin Door
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: B

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

What was found

WHILE CLIMBING TO EN ROUTE CRUISING ALTITUDE OF FL190, CABIN DOOR ANNUNCIATOR ILLUMINATED AT APPROXIMATELY 18,700 FT. EXECUTED EMERGENCY DESCENT AND "CABIN DOOR UNLOCK" EMERGENCY PROCEDURES. AT 9000 MSL CABIN DOOR ANNUNCIATOR EXTINGUISHED. AIRCRAFT LANDED UNEVENTFULLY. INSPECTION OF DOOR AFTER LANDING INDICATED IT WAS SECURELY LATCHED. MAINTENANCE FOUND UPPER AFT DOOR SWITCH OUT OF ADJUSTMENT. ADJUSTED AFT DOOR SWITCH. PRESSURIZED AIRCRAFT TO 6 PSI. DOOR WARNING SYSTEM CHECKED SAT.