Service difficulty report · Bulb · Boeing 737401

Difficulty date
March 19, 2011
Submitted
March 21, 2011
Operation
Air carrier
Aircraft
N421US
Make and model
Boeing 737401
Aircraft serial
23988
Part
Bulb
Condition
Faulty
Location
Nr 1 Engine
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
E, A

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

What was found

CLT - DURING CRUISE AT FL330, EN ROUTE FROM MCO TO DCA, CREW NOTICED THE NR 1 ENGINE OIL TEMPERATURE PEGGED OVER 200 DEGREES. CREW ACCOMPLISHED QUICK REFERENCE HANDBOOK PROCEDURES, SHUT DOWN THE NR 1 ENGINE AND DECLARED AN EMERGENCY. ALL OTHER ENGINE INDICATIONS WERE NORMAL. FLIGHT DIVERTED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. TOTAL SINGLE ENGINE TIME WAS NOT REPORTED. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE OIL TEMPERATURE BULB PER MM 79-34-01. REMOVED AND REPLACED OIL SCAVENGE FILTER PER MM 79-21-04. RAN ENGINE AT IDLE FOR 5 MINUTES PER MM 71-00-00-201. OIL TEMPERATURE INDICATION NORMAL.