Service difficulty report · Safety Switch · Beech B300

Difficulty date
November 12, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N825UP
Make and model
Beech B300
Aircraft serial
FL925
Aircraft time
5,962 hours, 5,128 cycles
Part
Safety Switch
Part number
1015210542
Part serial
NSN
Condition
Intermittent
Location
Flap
Part time
5,962 hours, 5,128 cycles
Stage of operation
AP
How discovered
V
Nature of condition
J, O
Precautionary procedure
L

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

What was found

FLAPS INOP. WHILE APPROACH, FLAPS DID NOT EXTEND TO SELECTED POSITION. CREW WENT MISSED APPROACH TO TROUBLESHOOT AND RUN CHECKLIST. CB'S CHECKED AND GEAR UP WARNING HORN SOUND WHEN LEVER IN DOWN POSITION. EMERGENCY DECLARED & FLAPS UP LANDING UNEVENTFUL. FLAPS CHECKED AGAIN ON DECK. NO MOVEMENT. FOUND L/H FLAP SAFETY SWITCH WAS INTERMITTENLY FUNCTIONAL. R&R L/H FLAP SAFETY SWITCH WITH NEW SWITCH. OPS CHECK GOOD, NO FURTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.

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