SDR GAIA00362B

Service difficulty report · Bypass Valve · Boeing 727223

Difficulty date: June 5, 2000
Submitted: July 24, 2000
Operation: Air carrier
Aircraft: N6806
Make and model: Boeing 727223
Aircraft serial: 19481
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Bypass Valve
Condition: Failed
Location: Te Flap
Stage of operation: AP
How discovered: O
Nature of condition: G, J
Precautionary procedure: O

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

What was found

FLT 718 - STL-ICT - ALTERNATE FLAPS FAILED TO EXTEND WHEN ALTERNATE FLAPS SELECTED IAW SPLIT FLAP EMERGENCY CHECKLIST. AIRCRAFT MADE AN UNEVENTFUL LANDING AT ICT. CHECKED AND SERVICED ALL OUTBOARD FLAP GEAR BOXES AND ACTUATORS. REMOVED AND REPLACED OUTBOARD FLAP BYPASS VALVE (P/N AV13J5101) AND HYDRAULIC FLOW REGULATOR (P/N 1032046). ALTERNATE FLAPS SYSTEM CHECKS GOOD ON GROUND THROUGH NUMEROUS CYCLES. AIRCRAFT RETURNED TO SERVICE. (M)