<< >> NASA ASRS Report 397840, March 1998

An S80 flight crew experiences an altitude deviation when their altitude hold on the autoplt does not maintain the climbed to altitude.

Attributes
ACN	397840
Time
Date	199803
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	msl bound lower : 13000 msl bound upper : 13300
Environment
Light	Night
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	397840
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	397841
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

Location: ord 030 degree radial, 30 DME. First officer hand flying with performance engaged, leveled off at 13000 ft and engaged autoplt. Aircraft continued to climb to 13300 ft. Immediately recovered to 13000 ft. Ord departure noted the deviation as we were returning to 13000 ft. He reported there was no conflict.

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Original NASA ASRS Text

Title: AN S80 FLC EXPERIENCES AN ALTDEV WHEN THEIR ALT HOLD ON THE AUTOPLT DOES NOT MAINTAIN THE CLBED TO ALT.

Narrative: LOCATION: ORD 030 DEG RADIAL, 30 DME. FO HAND FLYING WITH PERFORMANCE ENGAGED, LEVELED OFF AT 13000 FT AND ENGAGED AUTOPLT. ACFT CONTINUED TO CLB TO 13300 FT. IMMEDIATELY RECOVERED TO 13000 FT. ORD DEP NOTED THE DEV AS WE WERE RETURNING TO 13000 FT. HE RPTED THERE WAS NO CONFLICT.

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.