<< >> NASA ASRS Report 481380, August 2000

A B737-200 flight crew overshoots their assigned altitude when the captain fails to slow the light aircraft's rate of climb approaching 9000 ft 30 mi northeast of iad, va.

Attributes
ACN	481380
Time
Date	200008
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : iad.airport
State Reference	VA
Altitude	msl bound lower : 8700 msl bound upper : 9400
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : iad.tracon
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 3000 flight time type : 400
ASRS Report	481380
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 23000 flight time type : 2700
ASRS Report	481496
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot non adherence : clearance
Independent Detector	atc equipment other atc equipment : radar other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : returned to assigned altitude
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While on a vector to intercept V214 northeast of iad, a momentary altitude deviation occurred while leveling at 9000 ft MSL. An '8000 ft for 9000 ft' call was given by the PNF and acknowledged by the PF. Momentary distraction caused an overshoot to 9400 ft MSL and a correction deviation to 8700 ft MSL prior to leveling at 9000 ft MSL. Departure control questioned our altimeter setting and mode C readout. No further events occurred. A contributing factor may have been that this was the 6TH leg of a 6 leg day beginning almost 12 hours earlier. Lesson learned by both pilots. Supplemental information from acn 481496: in climb with light aircraft and rapid climb at 250 KIAS, momentary distraction -- overshot 9000 ft to 9400 ft. Probably tired at XY00 and last leg.

Related reports:

• B737-300 approaching stl overshoots descent to 15000 ft.
• An air carrier B767 flight crew, at the end of a long flight...

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Original NASA ASRS Text

Title: A B737-200 FLC OVERSHOOTS THEIR ASSIGNED ALT WHEN THE CAPT FAILS TO SLOW THE LIGHT ACFT'S RATE OF CLB APCHING 9000 FT 30 MI NE OF IAD, VA.

Narrative: WHILE ON A VECTOR TO INTERCEPT V214 NE OF IAD, A MOMENTARY ALTDEV OCCURRED WHILE LEVELING AT 9000 FT MSL. AN '8000 FT FOR 9000 FT' CALL WAS GIVEN BY THE PNF AND ACKNOWLEDGED BY THE PF. MOMENTARY DISTR CAUSED AN OVERSHOOT TO 9400 FT MSL AND A CORRECTION DEV TO 8700 FT MSL PRIOR TO LEVELING AT 9000 FT MSL. DEP CTL QUESTIONED OUR ALTIMETER SETTING AND MODE C READOUT. NO FURTHER EVENTS OCCURRED. A CONTRIBUTING FACTOR MAY HAVE BEEN THAT THIS WAS THE 6TH LEG OF A 6 LEG DAY BEGINNING ALMOST 12 HRS EARLIER. LESSON LEARNED BY BOTH PLTS. SUPPLEMENTAL INFO FROM ACN 481496: IN CLB WITH LIGHT ACFT AND RAPID CLB AT 250 KIAS, MOMENTARY DISTR -- OVERSHOT 9000 FT TO 9400 FT. PROBABLY TIRED AT XY00 AND LAST LEG.

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.