Altitude excursion by air carrier large transport aircraft during WX turbulence.

Attributes
ACN	223395
Time
Date	199210
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : phl
State Reference	PA
Altitude	msl bound lower : 13000 msl bound upper : 13300
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute airway : zny
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 20 flight time total : 1850 flight time type : 20
ASRS Report	223395
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe inflight encounter : weather non adherence : required legal separation non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Moderate chop kicked us 300 ft higher than assigned altitude of 13K ft. I called 'altitude 300 ft high.' captain responded. We had previously requested a higher altitude due to turbulence and were awaiting clearance due to traffic conflict. Autoplt was off and probably should have been on. Center ATC requested a telephone call upon landing at our destination.

Original NASA ASRS Text

Title: ALT EXCURSION BY ACR LGT ACFT DURING WX TURB.

Narrative: MODERATE CHOP KICKED US 300 FT HIGHER THAN ASSIGNED ALT OF 13K FT. I CALLED 'ALT 300 FT HIGH.' CAPT RESPONDED. WE HAD PREVIOUSLY REQUESTED A HIGHER ALT DUE TO TURB AND WERE AWAITING CLRNC DUE TO TFC CONFLICT. AUTOPLT WAS OFF AND PROBABLY SHOULD HAVE BEEN ON. CTR ATC REQUESTED A TELEPHONE CALL UPON LNDG AT OUR DEST.

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.