<< >> NASA ASRS Report 314700, August 1995

Altitude deviation altitude excursion.

Attributes
ACN	314700
Time
Date	199508
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lrp airport : rdg
State Reference	PA
Altitude	msl bound lower : 8000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mdt tower : dpa
Operator	common carrier : air carrier
Make Model Name	Jetstream 31
Operating Under FAR Part	Part 135
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 250 flight time total : 5400 flight time type : 350
ASRS Report	314700
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi pilot : instrument pilot : atp
Experience	flight time last 90 days : 250 flight time total : 5300 flight time type : 2300
ASRS Report	313705
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	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:

We were talking to harrisburg approach level at 4000 ft. Harrisburg then climbed us to 9000 ft. We put 9000 ft in the alerter. Harrisburg approach then told us that we were supposed to be at 8000 ft. We responded and said 'we understood 9000 ft.' they said 'no, it should be 8000 ft and that will be your final.' the normal altitude along that route is 9000 ft for turboprops and 10000 ft for jets. We descended back down to 8000 ft. No further inquiries about the altitude were made. Supplemental information from acn 313705: coming from reading, PA, to iad we were filed for 15000 ft. On climb out captain and I discussed the fact that climbing all the way up to 15000 ft was not necessary because normally iad approach accepts traffic over robrt intersection at 9000 ft. We received clearance to climb from 4000 ft to 9000 ft (we think).

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Original NASA ASRS Text

Title: ALT DEV ALT EXCURSION.

Narrative: WE WERE TALKING TO HARRISBURG APCH LEVEL AT 4000 FT. HARRISBURG THEN CLBED US TO 9000 FT. WE PUT 9000 FT IN THE ALERTER. HARRISBURG APCH THEN TOLD US THAT WE WERE SUPPOSED TO BE AT 8000 FT. WE RESPONDED AND SAID 'WE UNDERSTOOD 9000 FT.' THEY SAID 'NO, IT SHOULD BE 8000 FT AND THAT WILL BE YOUR FINAL.' THE NORMAL ALT ALONG THAT RTE IS 9000 FT FOR TURBOPROPS AND 10000 FT FOR JETS. WE DSNDED BACK DOWN TO 8000 FT. NO FURTHER INQUIRIES ABOUT THE ALT WERE MADE. SUPPLEMENTAL INFO FROM ACN 313705: COMING FROM READING, PA, TO IAD WE WERE FILED FOR 15000 FT. ON CLBOUT CAPT AND I DISCUSSED THE FACT THAT CLBING ALL THE WAY UP TO 15000 FT WAS NOT NECESSARY BECAUSE NORMALLY IAD APCH ACCEPTS TFC OVER ROBRT INTXN AT 9000 FT. WE RECEIVED CLRNC TO CLB FROM 4000 FT TO 9000 FT (WE THINK).

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.