<< >> NASA ASRS Report 331160, March 1996

Miscom on clearance and flight crew climbed through initial assigned altitude. Reporter captain says the first officer written clearance showed 160 for altitude and was read back, but reporter interpreted it as 16000 ft and it was supposed to be 1600 ft.

Attributes
ACN	331160
Time
Date	199603
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pie
State Reference	FL
Altitude	msl bound lower : 1600 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : tpa tower : pit
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 210 flight time total : 8000 flight time type : 600
ASRS Report	331160
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The copilot received the clearance before startup and wrote it down and gave a readback. The clearance was 'right.H. A/south filed 160 35-10' which is runway heading cleared as filed climb to 16000 ft expect 35000 ft in 10 mins. There was not a correction by the controller. Leaving 2500 ft we were informed that we were supposed to stop at 1600 ft. We did exactly what the clearance was, and I believe it was a miscom.

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Original NASA ASRS Text

Title: MISCOM ON CLRNC AND FLC CLBED THROUGH INITIAL ASSIGNED ALT. RPTR CAPT SAYS THE FO WRITTEN CLRNC SHOWED 160 FOR ALT AND WAS READ BACK, BUT RPTR INTERPRETED IT AS 16000 FT AND IT WAS SUPPOSED TO BE 1600 FT.

Narrative: THE COPLT RECEIVED THE CLRNC BEFORE STARTUP AND WROTE IT DOWN AND GAVE A READBACK. THE CLRNC WAS 'R.H. A/S FILED 160 35-10' WHICH IS RWY HDG CLRED AS FILED CLB TO 16000 FT EXPECT 35000 FT IN 10 MINS. THERE WAS NOT A CORRECTION BY THE CTLR. LEAVING 2500 FT WE WERE INFORMED THAT WE WERE SUPPOSED TO STOP AT 1600 FT. WE DID EXACTLY WHAT THE CLRNC WAS, AND I BELIEVE IT WAS A MISCOM.

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.