SDR FDEA201207272716

Service difficulty report · Proximity Switch · Boeing 7572Q8

Difficulty date: July 27, 2012
Submitted: July 30, 2012
Operation: Air carrier
Aircraft: N993FD
Make and model: Boeing 7572Q8
Aircraft serial: 24965
Aircraft time: 56,003 hours, 19,401 cycles
Engine: Pwa PW2040
System (JASC): 2781 · Leading Edge Slat Position Indicating System
Part: Proximity Switch
Condition: Malfunctioned
Location: Le Slats
Stage of operation: AP
How discovered: O
Nature of condition: J, F
Precautionary procedure: B, A

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

What was found

ON APPROACH, RECEIVED A L/E SLAT ASYM ALERT. ACFT DID NOT HAVE CONTROL PROBLEMS. UNABLE TO EXTEND FLAPS BEYOND 0 DEGREE AND 1 DEGREE, HYDRAULICALLY. USED ALTERNATE FLAPS FOR LANDING. R & R LOSS SENSING SWITCH FOR INBOARD LE SLATS IAW AMM 27-81-41-4, THRU STEP 4.C.(7).

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