19990810031039I

Incident

FAA incident report · Boeing 737-524 · Norfolk, VA · August 10, 1999

Date
August 10, 1999 · 07:11 local
Place
Norfolk, VA
Airport
Norfolk International
Phase of flight
To Init Climb(1st Pwr Reduct)
Operating rules
Air carrier (Part 121)
Operator
CALA
Aircraft
N14605
Reported as
Boeing 737524
People aboard
5
Fatal injuries
0

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) The aircraft landed rwy 3 after reporting smoke in the cabin. The ARFF responded and the aircraft taxied to the ramp without incident. As reported by the captain, log page #7886922, block 1: "left generator tripped off line at takeoff, qrh procedures run, generator reset normally. Approx. 3 minutes later we were notified of light smoke in the forward part of the cabin. Returned to orf, landing weight 112440 lbs, vertical rate +OR-300 ft/min at touchdown". The captain also stated that the smoke never got to the cockpit, but once the cockpit door was opened, after arrival, he could see and smell the smoke. He did not, however, qualify the scent of the smoke. The deplaning of the passengers took place at the gate, through the jetway, and there were no injuries or panic. A usair mechanic had taken a preliminary look at the engine, and had found a "charred" phase wire, at the csd generator (as reported by the station manager). There was a previous history for this aircraft's electrical system, and it was on an engineering watch. Maintenance was having difficulty keeping the left and right generator loads balanced. The system had previously been reported as carrying a loa d of 110 amps on the left side, and only 40 to 50 on the right side. Ewr Continental maintenance personnel changed the left generator, the firewall disconnect "b-phase" cable (heat damaged), the generator feeder cable (heat damaged), under the cabin floor, the #1 tru and battery charger (heat damaged), under the cabin floor, and the generator control panel. An overweight landing inspection was performed. And the aircraft satisfactorily test flown. The problem has not reoccurred, since the aircraft has been returned to service. All removed parts have been quarantined, for further examination.

As the FAA filed it

(-23) THE AIRCRAFT LANDED RWY 3 AFTER REPORTING SMOKE IN THE CABIN. THE ARFF RESPONDED AND THE AIRCRAFT TAXIED TO THE RAMP WITHOUT INCIDENT. AS REPORTED BY THE CAPTAIN, LOG PAGE #7886922, BLOCK 1: "LEFT GENERATOR TRIPPED OFF LINE AT TAKEOFF, QRH PROCEDURES RUN, GENERATOR RESET NORMALLY. APPROX. 3 MINUTES LATER WE WERE NOTIFIED OF LIGHT SMOKE IN THE FORWARD PART OF THE CABIN. RETURNED TO ORF, LANDING WEIGHT 112440 LBS, VERTICAL RATE +OR-300 FT/MIN AT TOUCHDOWN". THE CAPTAIN ALSO STATED THAT THE SMOKE NEVER GOT TO THE COCKPIT, BUT ONCE THE COCKPIT DOOR WAS OPENED, AFTER ARRIVAL, HE COULD SEE AND SMELL THE SMOKE. HE DID NOT, HOWEVER, QUALIFY THE SCENT OF THE SMOKE. THE DEPLANING OF THE PASSENGERS TOOK PLACE AT THE GATE, THROUGH THE JETWAY, AND THERE WERE NO INJURIES OR PANIC. A USAIR MECHANIC HAD TAKEN A PRELIMINARY LOOK AT THE ENGINE, AND HAD FOUND A "CHARRED" PHASE WIRE, AT THE CSD GENERATOR (AS REPORTED BY THE STATION MANAGER). THERE WAS A PREVIOUS HISTORY FOR THIS AIRCRAFT'S ELECTRICAL SYSTEM, AND IT WAS ON AN ENGINEERING WATCH. MAINTENANCE WAS HAVING DIFFICULTY KEEPING THE LEFT AND RIGHT GENERATOR LOADS BALANCED. THE SYSTEM HAD PREVIOUSLY BEEN REPORTED AS CARRYING A LOA D OF 110 AMPS ON THE LEFT SIDE, AND ONLY 40 TO 50 ON THE RIGHT SIDE. EWR CONTINENTAL MAINTENANCE PERSONNEL CHANGED THE LEFT GENERATOR, THE FIREWALL DISCONNECT "B-PHASE" CABLE (HEAT DAMAGED), THE GENERATOR FEEDER CABLE (HEAT DAMAGED), UNDER THE CABIN FLOOR, THE #1 TRU AND BATTERY CHARGER (HEAT DAMAGED), UNDER THE CABIN FLOOR, AND THE GENERATOR CONTROL PANEL. AN OVERWEIGHT LANDING INSPECTION WAS PERFORMED. AND THE AIRCRAFT SATISFACTORILY TEST FLOWN. THE PROBLEM HAS NOT REOCCURRED, SINCE THE AIRCRAFT HAS BEEN RETURNED TO SERVICE. ALL REMOVED PARTS HAVE BEEN QUARANTINED, FOR FURTHER EXAMINATION.