<< >> NASA ASRS Report 354820, December 1996

B757 flight crew on go around retracts speed brakes early causing flap overspd. This was not entered in logbook due to quick turn around and delayed debriefing on the incident.

Attributes
ACN	354820
Time
Date	199612
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 35 flight time total : 3200 flight time type : 400
ASRS Report	354820
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Go around from missed approach was poorly executed because captain improperly set MCP altitude window and first officer retracted speed brake without command. Together these caused a flap overspd of 10 KTS. After normal landing, flap discrepancy was not entered in the logbook due to late arrival, quick turn, and distraction of snow removal. Because of the rushed ground operations, crew did not debrief the go around sufficiently to discover overspd. The event was more thoroughly discussed at the next station, and the decision was made to enter it in the logbook there. Had we taken the time to thoroughly debrief the event and consider its severity, we would not have departed the first station without entering and properly deferring the discrepancy.

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Original NASA ASRS Text

Title: B757 FLC ON GAR RETRACTS SPD BRAKES EARLY CAUSING FLAP OVERSPD. THIS WAS NOT ENTERED IN LOGBOOK DUE TO QUICK TURN AROUND AND DELAYED DEBRIEFING ON THE INCIDENT.

Narrative: GAR FROM MISSED APCH WAS POORLY EXECUTED BECAUSE CAPT IMPROPERLY SET MCP ALT WINDOW AND FO RETRACTED SPD BRAKE WITHOUT COMMAND. TOGETHER THESE CAUSED A FLAP OVERSPD OF 10 KTS. AFTER NORMAL LNDG, FLAP DISCREPANCY WAS NOT ENTERED IN THE LOGBOOK DUE TO LATE ARR, QUICK TURN, AND DISTR OF SNOW REMOVAL. BECAUSE OF THE RUSHED GND OPS, CREW DID NOT DEBRIEF THE GAR SUFFICIENTLY TO DISCOVER OVERSPD. THE EVENT WAS MORE THOROUGHLY DISCUSSED AT THE NEXT STATION, AND THE DECISION WAS MADE TO ENTER IT IN THE LOGBOOK THERE. HAD WE TAKEN THE TIME TO THOROUGHLY DEBRIEF THE EVENT AND CONSIDER ITS SEVERITY, WE WOULD NOT HAVE DEPARTED THE FIRST STATION WITHOUT ENTERING AND PROPERLY DEFERRING THE DISCREPANCY.

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.