Service difficulty report · Check Valve · Boeing 7672B7ER

Difficulty date
March 16, 2013
Submitted
March 19, 2013
Operation
Air carrier
Aircraft
N256AY
Make and model
Boeing 7672B7ER
Aircraft serial
26847
Aircraft time
81,765 hours, 15,185 cycles
Engine
Ge CF680C2B2
Engine time
84,258 hours, 15,498 cycles
Part
Check Valve
Part number
77385619
Part serial
921144
Condition
Failed
Location
Nr 2
Part time
71,547 hours, 13,223 cycles
Stage of operation
LD
How discovered
O
Nature of condition
X
Precautionary procedure
K

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

What was found

FLT 1628 ENROUTE, NR 2 ENGINE FLAMED OUT DURING REVERSE SELECTION ON LANDING. THE FLIGHT TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. MX REPLACED THE NR 2 ENGINE MEC AND FUEL PUMP, PERFORMED THE NR 2 ENGINE VSV ADJUSTMENT, AND CLEARED THE CDP AND CBP WATER DRAIN PORTS. CONFIRMED FAILURE OF THE IP CHECK VALVE. UNIT WAS SCRAPPED.