<< >> NASA ASRS Report 376520, August 1997

B757 flight crew gets into an overload condition during departure procedure in menacing WX. First officer was hand-flying aircraft and overshot his 10000 ft assigned altitude but returned to it quickly. He then engaged the autoplt.

Attributes
ACN	376520
Time
Date	199708
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 10000 msl bound upper : 10400
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 15000
ASRS Report	376520
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 6000 flight time type : 2500
ASRS Report	376742
Events
Anomaly	altitude deviation : overshoot inflight encounter : weather non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

After takeoff at atl, a vector to the north took us toward 2 building cumulo nimbus -- radar indicated heavy returns 20 mi ahead. Unable to break into departure control (heavy voice traffic), when departure gave us a turn we could not accept. I was requesting a straight ahead vector between the 2 cells and trying to pick the best route when the altitude alert went off. The first officer was hand-flying and in moderate turbulence trying to turn and avoid cells. Overshot altitude by 400 ft and descended and engaged autoplt with no further problems. Having the autoplt on could have helped us in this busy situation.

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Original NASA ASRS Text

Title: B757 FLC GETS INTO AN OVERLOAD CONDITION DURING DEP PROC IN MENACING WX. FO WAS HAND-FLYING ACFT AND OVERSHOT HIS 10000 FT ASSIGNED ALT BUT RETURNED TO IT QUICKLY. HE THEN ENGAGED THE AUTOPLT.

Narrative: AFTER TKOF AT ATL, A VECTOR TO THE N TOOK US TOWARD 2 BUILDING CUMULO NIMBUS -- RADAR INDICATED HVY RETURNS 20 MI AHEAD. UNABLE TO BREAK INTO DEP CTL (HVY VOICE TFC), WHEN DEP GAVE US A TURN WE COULD NOT ACCEPT. I WAS REQUESTING A STRAIGHT AHEAD VECTOR BTWN THE 2 CELLS AND TRYING TO PICK THE BEST RTE WHEN THE ALT ALERT WENT OFF. THE FO WAS HAND-FLYING AND IN MODERATE TURB TRYING TO TURN AND AVOID CELLS. OVERSHOT ALT BY 400 FT AND DSNDED AND ENGAGED AUTOPLT WITH NO FURTHER PROBS. HAVING THE AUTOPLT ON COULD HAVE HELPED US IN THIS BUSY SIT.

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.