<< >> NASA ASRS Report 525102, September 2001

Piper PA28 set the wrong altimeter setting during an IFR flight resulting in ATC intervention when noticing the aircraft not in level flight at the correct altitude.

Attributes
ACN	525102
Time
Date	200109
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 7000
Environment
Flight Conditions	IMC
Weather Elements	Turbulence
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : cfi
Experience	flight time last 90 days : 35 flight time total : 1400 flight time type : 450
ASRS Report	525102
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	inflight encounter : turbulence inflight encounter : weather non adherence : published procedure non adherence other
Independent Detector	atc equipment other atc equipment : acft radar alt. other controllera
Resolutory Action	controller : issued alert other
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

This pilot was on an instrument flight plan from iwd to acb. Flight levels 5000 ft and later 7000 ft were asked for and received. During the transfer from one controling authority/authorized to another, an altimeter setting was given and entered into the altimeter window incorrectly. This pilot, after considerable review of the situation, believes there were several reasons for this oversight. Even good preflight planning will not prevent information overload when anticipated conditions change. Workload can be reduced with an autoplt. IFR in IMC conditions without an autoplt contribute to this overload. This pilot believes ATC became aware of the situation after the pilot reported level at 7000 ft and the transponder did not agree. They did initiate corrective action. The current aviation situation has added some anxiety to do things right.

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Original NASA ASRS Text

Title: PIPER PA28 SET THE WRONG ALTIMETER SETTING DURING AN IFR FLT RESULTING IN ATC INTERVENTION WHEN NOTICING THE ACFT NOT IN LEVEL FLT AT THE CORRECT ALT.

Narrative: THIS PLT WAS ON AN INST FLT PLAN FROM IWD TO ACB. FLT LEVELS 5000 FT AND LATER 7000 FT WERE ASKED FOR AND RECEIVED. DURING THE TRANSFER FROM ONE CTLING AUTH TO ANOTHER, AN ALTIMETER SETTING WAS GIVEN AND ENTERED INTO THE ALTIMETER WINDOW INCORRECTLY. THIS PLT, AFTER CONSIDERABLE REVIEW OF THE SIT, BELIEVES THERE WERE SEVERAL REASONS FOR THIS OVERSIGHT. EVEN GOOD PREFLT PLANNING WILL NOT PREVENT INFO OVERLOAD WHEN ANTICIPATED CONDITIONS CHANGE. WORKLOAD CAN BE REDUCED WITH AN AUTOPLT. IFR IN IMC CONDITIONS WITHOUT AN AUTOPLT CONTRIBUTE TO THIS OVERLOAD. THIS PLT BELIEVES ATC BECAME AWARE OF THE SIT AFTER THE PLT RPTED LEVEL AT 7000 FT AND THE XPONDER DID NOT AGREE. THEY DID INITIATE CORRECTIVE ACTION. THE CURRENT AVIATION SIT HAS ADDED SOME ANXIETY TO DO THINGS RIGHT.

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.