Service difficulty report · Control Box · Saab 340B

Difficulty date
April 25, 2007
Submitted
January 7, 2008
Operation
Air carrier
Aircraft
N277MJ
Make and model
Saab 340B
Aircraft serial
277
Aircraft time
32,098 hours, 35,582 cycles
Engine
Ge CT79B
Part
Control Box
Part number
8519M3
Part serial
271
Condition
Malfunctioned
Location
Te Flaps
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FLAPS ANNUNCIATOR LIGHT ON CWP ILLUMINATES REPEATEDLY IN FLIGHT, GREEN LIGHT ON TEST PANEL 1 ILLUMINATES AND FLAP INDICATOR NEEDLE FLUCTUATES. SERVICED HYDRAULIC ACCUMULATORS IAW SMM 12-10-29. PERFORMED VISUAL INSPECTION OF FLAP CONTROL VALVE FLAP ACTUATORS. NO LEAKS NOTED REQUIRES FURTHER T/S. VERIFIED FLAP ACTUATORS ARE NOT LEAKING SUSPECT FLAP RIGGING. FLAP CONTROL BOX IAW SAAB MM 27-51-10, P/N OFF/ON: 8519M3 S/N OFF: 271, S/N ON: 424. OPERATIONAL CHECK AND RIGGING ARE GOOD IAW SAAB MM 27-51-00.

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