C500 flight crew departed from the GS on approach to sea.

Attributes
ACN	442040
Time
Date	199907
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sea.airport
State Reference	WA
Altitude	msl single value : 1400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sea.tower
Operator	general aviation : personal
Make Model Name	Citation I
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer & glide slope : 16
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 500
ASRS Report	442040
Person 2
Affiliation	other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : private
Events
Anomaly	altitude deviation : undershoot non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to original clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I was acting as the PIC of a 2 hour flight, with a friend as the sic. He is a non professional pilot. I've previously flown with him in this very aircraft. During the flight we found ourselves dealing with WX which required a well trained professional crew -- thunderstorms, icing, etc. The en route flight went well. Then, as we started the STAR he got behind and so did I, becoming a single pilot, during which time I deviated from the GS on the ILS. We were in VMC and had the runway in sight. However, I knew we were not to go below -- I just deviated from my training and procedures to deal with the sic. The lessons here: 1) know who you're flying with, 2) make sure he or she is up to the standards required for the operation involved, and 3) 2 pilots means 2 current and qualified pilots.

Original NASA ASRS Text

Title: C500 FLC DEPARTED FROM THE GS ON APCH TO SEA.

Narrative: I WAS ACTING AS THE PIC OF A 2 HR FLT, WITH A FRIEND AS THE SIC. HE IS A NON PROFESSIONAL PLT. I'VE PREVIOUSLY FLOWN WITH HIM IN THIS VERY ACFT. DURING THE FLT WE FOUND OURSELVES DEALING WITH WX WHICH REQUIRED A WELL TRAINED PROFESSIONAL CREW -- TSTMS, ICING, ETC. THE ENRTE FLT WENT WELL. THEN, AS WE STARTED THE STAR HE GOT BEHIND AND SO DID I, BECOMING A SINGLE PLT, DURING WHICH TIME I DEVIATED FROM THE GS ON THE ILS. WE WERE IN VMC AND HAD THE RWY IN SIGHT. HOWEVER, I KNEW WE WERE NOT TO GO BELOW -- I JUST DEVIATED FROM MY TRAINING AND PROCS TO DEAL WITH THE SIC. THE LESSONS HERE: 1) KNOW WHO YOU'RE FLYING WITH, 2) MAKE SURE HE OR SHE IS UP TO THE STANDARDS REQUIRED FOR THE OP INVOLVED, AND 3) 2 PLTS MEANS 2 CURRENT AND QUALIFIED PLTS.

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.