Service difficulty report · Proximity Switch · Boeing 75721B

Difficulty date
January 25, 2019
Submitted
January 29, 2019
Operation
Air carrier
Aircraft
N933FD
Make and model
Boeing 75721B
Aircraft serial
24330
Aircraft time
60,861 hours, 35,727 cycles
Part
Proximity Switch
Condition
Out Of Adjust
Location
Landing Gear
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

ON GEAR RETRACT RECEIVED EICAS "GEAR DISAGREE" MSG. AFTER 20 SEC MSG WENT AWAY. NOTE- GEAR SHOWED UP AMBER GEAR LIGHT WAS ILLUMINATED AND WENT AWAY AFTER 20 SEC. T/S REF. FIM 32-30 FT 815, CLEARANCE OUT OF LIMITS ON S10073 AND S10240, S10242, ADJUSTED ALL REF. AMM 32-61-02-2, REQUIRES GEAR SWING. REF FIM 32-30 FT 815, PERFORMED 5 SUCCESSFUL RETRACTS/EXTENSIONS OF GEAR WITH NO FAULTS USING EXTERNAL HYDRAULIC POWER REF AMM 29-11-00-2, OPS CHECK GOOD, NO FAULTS NOTED, A/C OK FOR SERVICE.

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