A PC12 commercial pilot experiences vertigo while using his checklist and loses 1000 ft during a cli...

Attributes
ACN	440933
Time
Date	199903
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pae.airport
State Reference	WA
Altitude	msl bound lower : 1800 msl bound upper : 2800
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse.artcc
Operator	general aviation : personal
Make Model Name	PC-12
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	climbout : intermediate altitude
Route In Use	approach : traffic pattern departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 1550 flight time type : 15
ASRS Report	440933
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended or assigned course flight crew : became reoriented flight crew : regained aircraft control flight crew : returned to assigned airspace
Consequence	other
Supplementary
Problem Areas	Environmental Factor Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I experienced vertigo while flying a new aircraft and misinterpreted the EFIS directional gyroscope and attitude heading and reference system (ahrs), which I'm not used to using. I was further distracted by a climb checklist and a heading which I didn't expect to receive. The altitude loss was +/-1000 ft. I received recent simcom training (may/xx/99) and an instrument competency check, but all this training was in a simulator and not actual IMC flight conditions. I do not have many recent IMC flight hours and was hand-flying for experience.

Original NASA ASRS Text

Title: A PC12 COMMERCIAL PLT EXPERIENCES VERTIGO WHILE USING HIS CHKLIST AND LOSES 1000 FT DURING A CLBOUT NEAR PAE, WA.

Narrative: I EXPERIENCED VERTIGO WHILE FLYING A NEW ACFT AND MISINTERPRETED THE EFIS DIRECTIONAL GYROSCOPE AND ATTITUDE HEADING AND REF SYS (AHRS), WHICH I'M NOT USED TO USING. I WAS FURTHER DISTRACTED BY A CLB CHKLIST AND A HEADING WHICH I DIDN'T EXPECT TO RECEIVE. THE ALT LOSS WAS +/-1000 FT. I RECEIVED RECENT SIMCOM TRAINING (MAY/XX/99) AND AN INST COMPETENCY CHK, BUT ALL THIS TRAINING WAS IN A SIMULATOR AND NOT ACTUAL IMC FLT CONDITIONS. I DO NOT HAVE MANY RECENT IMC FLT HRS AND WAS HAND-FLYING FOR EXPERIENCE.

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.

A PC12 commercial pilot experiences vertigo while using his checklist and loses 1000 ft during a climb out near pae, wa.