A B737-300 crew distraction by wake turbulence on departure oversped the flaps when they failed to retract them on schedule.

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Attributes
ACN	719644
Time
Date	200612
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	msl bound lower : 1600 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 13
ASRS Report	719644
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 146
ASRS Report	719643
Events
Anomaly	aircraft equipment problem : less severe inflight encounter : wake turbulence non adherence : published procedure other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Environmental Factor Aircraft
Primary Problem	Ambiguous

Narrative:

During climb out from lax we became distraction by a slight wake turbulence encounter and radio call from departure regarding visual separation with the preceding departure. During the distraction; we inadvertently neglected to retract the flaps from position 1. Shortly thereafter; I (pm) realized our error and retracted the flaps. Airspeed was between 245-250 KTS. Notified dispatch by ACARS to advise maintenance control in order to make arrangements for any necessary inspections on arrival. We were met by contract maintenance. Notified maintenance control by phone and entered the overspd condition in the logbook. In the future I will ensure that any distrs that occur prior to takeoff are completely resolved and removed from my thought process prior to continuing the flight. Callback conversation with reporter on acn 719643 revealed the following information: reporter stated that this event was short lived but one of the cues to an incorrect confign was the aircraft's reluctance to accelerate. The crew's maintenance report did not generate any problems for them and the event review committee acknowledged receipt of their report and indicated that no further action would be taken.

Original NASA ASRS Text

Title: A B737-300 CREW DISTR BY WAKE TURB ON DEP OVERSPED THE FLAPS WHEN THEY FAILED TO RETRACT THEM ON SCHEDULE.

Narrative: DURING CLBOUT FROM LAX WE BECAME DISTR BY A SLIGHT WAKE TURB ENCOUNTER AND RADIO CALL FROM DEP REGARDING VISUAL SEPARATION WITH THE PRECEDING DEP. DURING THE DISTR; WE INADVERTENTLY NEGLECTED TO RETRACT THE FLAPS FROM POS 1. SHORTLY THEREAFTER; I (PM) REALIZED OUR ERROR AND RETRACTED THE FLAPS. AIRSPD WAS BTWN 245-250 KTS. NOTIFIED DISPATCH BY ACARS TO ADVISE MAINT CTL IN ORDER TO MAKE ARRANGEMENTS FOR ANY NECESSARY INSPECTIONS ON ARR. WE WERE MET BY CONTRACT MAINT. NOTIFIED MAINT CTL BY PHONE AND ENTERED THE OVERSPD CONDITION IN THE LOGBOOK. IN THE FUTURE I WILL ENSURE THAT ANY DISTRS THAT OCCUR PRIOR TO TKOF ARE COMPLETELY RESOLVED AND REMOVED FROM MY THOUGHT PROCESS PRIOR TO CONTINUING THE FLT. CALLBACK CONVERSATION WITH RPTR ON ACN 719643 REVEALED THE FOLLOWING INFO: RPTR STATED THAT THIS EVENT WAS SHORT LIVED BUT ONE OF THE CUES TO AN INCORRECT CONFIGN WAS THE ACFT'S RELUCTANCE TO ACCELERATE. THE CREW'S MAINT RPT DID NOT GENERATE ANY PROBS FOR THEM AND THE EVENT REVIEW COMMITTEE ACKNOWLEDGED RECEIPT OF THEIR RPT AND INDICATED THAT NO FURTHER ACTION WOULD BE TAKEN.

Data retrieved from NASA's ASRS site as of January 2009 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.