TB20 flight crew enters P40/R4009 area inadvertently while executing a practice ILS to fdk.

Attributes
ACN	578119
Time
Date	200303
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : fdk.airport
State Reference	MD
Altitude	msl single value : 2800
Environment
Flight Conditions	VMC
Weather Elements	Turbulence
Light	Night
Aircraft 1
Controlling Facilities	tower : mri.tower
Operator	general aviation : instructional
Make Model Name	Trinidad TB-20
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer & glide slope : 23 other other vortac
Flight Phase	descent : intermediate altitude
Route In Use	approach : instrument precision
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : cfi pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 67 flight time total : 498 flight time type : 48
ASRS Report	578119
Person 2
Affiliation	other
Function	instruction : trainee
Qualification	pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe airspace violation : entry non adherence : far non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was instructor on evening/night VFR/IFR chkout flight for renter pilot. After VFR chkout maneuvers, we set up for ILS runway 23 fdk with westminster no pt transition. This transition course points directly at P40 tfr area. This date tfr expanded to 10 NM. Localizer intercept app 2 NM outside 10 NM tfr. Localizer needle malfunctioned, we flew approximately 2 NM into tfr before discovery. Contributing: I 'failed' GPS by turning to full dim setting. Overcast dark night conditions prevailed. Discovered error when I sensed transition taking too long, commanded left turn, then localizer needle moved instantly from full right deflected to full left. Judgement: questionable in failing GPS maybe, but pilots should be able to fly a 'needles only' approach without moving map, and we are taught from beginning of instrument training to 'trust the instruments.' in this case we could not. Contributing factor: later examination of aircraft logs revealed a history of problems with HSI system.

Original NASA ASRS Text

Title: TB20 FLC ENTERS P40/R4009 AREA INADVERTENTLY WHILE EXECUTING A PRACTICE ILS TO FDK.

Narrative: I WAS INSTRUCTOR ON EVENING/NIGHT VFR/IFR CHKOUT FLT FOR RENTER PLT. AFTER VFR CHKOUT MANEUVERS, WE SET UP FOR ILS RWY 23 FDK WITH WESTMINSTER NO PT TRANSITION. THIS TRANSITION COURSE POINTS DIRECTLY AT P40 TFR AREA. THIS DATE TFR EXPANDED TO 10 NM. LOC INTERCEPT APP 2 NM OUTSIDE 10 NM TFR. LOC NEEDLE MALFUNCTIONED, WE FLEW APPROX 2 NM INTO TFR BEFORE DISCOVERY. CONTRIBUTING: I 'FAILED' GPS BY TURNING TO FULL DIM SETTING. OVERCAST DARK NIGHT CONDITIONS PREVAILED. DISCOVERED ERROR WHEN I SENSED TRANSITION TAKING TOO LONG, COMMANDED L TURN, THEN LOCALIZER NEEDLE MOVED INSTANTLY FROM FULL R DEFLECTED TO FULL L. JUDGEMENT: QUESTIONABLE IN FAILING GPS MAYBE, BUT PLTS SHOULD BE ABLE TO FLY A 'NEEDLES ONLY' APCH WITHOUT MOVING MAP, AND WE ARE TAUGHT FROM BEGINNING OF INSTRUMENT TRAINING TO 'TRUST THE INSTRUMENTS.' IN THIS CASE WE COULD NOT. CONTRIBUTING FACTOR: LATER EXAMINATION OF ACFT LOGS REVEALED A HISTORY OF PROBLEMS WITH HSI SYSTEM.

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.