<< >> NASA ASRS Report 622218, March 2003

A taxiing B737 PIC has to shut down engines and go to battery power when the aircraft is affected with smoke and fumes related to burning electrical components during a night operation at iah, tx.

Attributes
ACN	622218
Time
Date	200303
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 16000 flight time type : 5000
ASRS Report	622218
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : declared emergency other
Consequence	Other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

After landing, several caution lights illuminated followed by a strong smell of burning electrical components and smoke throughout the aircraft. Declared an emergency, shut down the engines and switched the aircraft to standby power since the APU was inoperative. Flight attendants suggested opening the aircraft service doors to clear out the aircraft. Accomplished this and allowed fire rescue to board aircraft for inspection. No other problems found. Aircraft towed to gate without further incident. Note: I asked for a discrete frequency because ground traffic was very heavy. Switched to altitude ground frequency but could still hear ground communicating with other aircraft. This made it very difficult to communicate with both fire rescue and my crewmembers. This captain strongly suggests a dedicated discrete frequency at iah for these sits.

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Original NASA ASRS Text

Title: A TAXIING B737 PIC HAS TO SHUT DOWN ENGS AND GO TO BATTERY PWR WHEN THE ACFT IS AFFECTED WITH SMOKE AND FUMES RELATED TO BURNING ELECTRICAL COMPONENTS DURING A NIGHT OP AT IAH, TX.

Narrative: AFTER LNDG, SEVERAL CAUTION LIGHTS ILLUMINATED FOLLOWED BY A STRONG SMELL OF BURNING ELECTRICAL COMPONENTS AND SMOKE THROUGHOUT THE ACFT. DECLARED AN EMER, SHUT DOWN THE ENGS AND SWITCHED THE ACFT TO STANDBY PWR SINCE THE APU WAS INOP. FLT ATTENDANTS SUGGESTED OPENING THE ACFT SVC DOORS TO CLR OUT THE ACFT. ACCOMPLISHED THIS AND ALLOWED FIRE RESCUE TO BOARD ACFT FOR INSPECTION. NO OTHER PROBS FOUND. ACFT TOWED TO GATE WITHOUT FURTHER INCIDENT. NOTE: I ASKED FOR A DISCRETE FREQ BECAUSE GND TFC WAS VERY HVY. SWITCHED TO ALT GND FREQ BUT COULD STILL HEAR GND COMMUNICATING WITH OTHER ACFT. THIS MADE IT VERY DIFFICULT TO COMMUNICATE WITH BOTH FIRE RESCUE AND MY CREWMEMBERS. THIS CAPT STRONGLY SUGGESTS A DEDICATED DISCRETE FREQ AT IAH FOR THESE SITS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.