Service difficulty report · Check Valve · Boeing 747122

Difficulty date
December 14, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N852FT
Make and model
Boeing 747122
Aircraft serial
19757
Part
Check Valve
Part number
2680212
Condition
Cracked
Location
Nr 2 Pylon
Stage of operation
LD
Nature of condition
B
Precautionary procedure
O

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

What was found

ON LANDING GROUND SAW SMOKE AND POSSIBLE FLAMES COMING FROM NR 2 ENGINE AT SAME TIME LOST QUANTITY FROM NR 2 HYDRAULIC SYSTEM. NO WARNING FROM FIRE DETECTION EQUIPMENT OR OTHER ABNORMAL ENGINE READINGS. FOUND CHECK VALVE ON NR 2 HYDRAULIC MODULE CRACKED. REPLACED PER BOEING M/M 29-11-23.