SDR 9712626628

Service difficulty report · Evbc Filter · Boeing 747251B

Difficulty date
June 28, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N628US
Make and model
Boeing 747251B
Aircraft serial
22389
Engine
Pwa JT9D7Q
Part
Evbc Filter
Condition
Dirty
Location
Nr 4 Engine
Stage of operation
LD
Nature of condition
J
Precautionary procedure
E

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

What was found

DURING LANDING WHILE COMING OUT OF REVERSE THRUST, THE NR 4 ENGINE RPM DROPPED TO ZERO. EGT ROSE TO 710C FOR TEN SECONDS AND OIL PRESSURE DROPPED TO ZERO. ENGINE WAS SHUT DOWN. MAINTENANCE PERFORMED AN OVER TEMPERATURE INSPECTION AND TROUBLESHOOTING PER FIM 71-01-00, RABS CHECKED OK. CLEANED EVBC FILTER. SPECIFIC PART CAUSING PROBLEM TO BE DETERMINED.