Cpr small transport altitude deviation undershot altitude crossing restriction on straight in to mfr...

Attributes
ACN	194060
Time
Date	199111
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mfr
State Reference	OR
Altitude	msl bound lower : 7000 msl bound upper : 8000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tracon : mfr
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 75 flight time total : 3000
ASRS Report	194060
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : non radar
Events
Anomaly	altitude deviation : undershoot altitude deviation : excursion from assigned altitude non adherence : clearance other spatial deviation other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

En route flight from aurora, or, to medford at night FL210. WX reported at 1400 broken 1 mi visibility in fog. Approach reported aircraft missing ILS 14, shortly after breaking out and cancelling, landing on runway 32. We crossed samie (014.4 imfr ILS) at 8000 (2700 ft high). Proceeded to make left 360 degree in depicted hold pattern to lose altitude and notified approach. Approach asked DME, in checking it was noted imfr DME was 10.0 not 14.4 and samie intersection. Approach advised that in their non radar environment the left 360 was not permitted except in VFR conditions. They advised to make right turn back to localizer. Localizer was reintercepted at 7 DME (approximately). Although approximately 2000 above GS, remainder of approach was in VFR conditions and was concluded with landing on 32. At a different location, outcome of flight could have been disastrous.

Original NASA ASRS Text

Title: CPR SMT ALTDEV UNDERSHOT ALT XING RESTRICTION ON STRAIGHT IN TO MFR.

Narrative: ENRTE FLT FROM AURORA, OR, TO MEDFORD AT NIGHT FL210. WX RPTED AT 1400 BROKEN 1 MI VISIBILITY IN FOG. APCH RPTED ACFT MISSING ILS 14, SHORTLY AFTER BREAKING OUT AND CANCELLING, LNDG ON RWY 32. WE CROSSED SAMIE (014.4 IMFR ILS) AT 8000 (2700 FT HIGH). PROCEEDED TO MAKE L 360 DEG IN DEPICTED HOLD PATTERN TO LOSE ALT AND NOTIFIED APCH. APCH ASKED DME, IN CHKING IT WAS NOTED IMFR DME WAS 10.0 NOT 14.4 AND SAMIE INTXN. APCH ADVISED THAT IN THEIR NON RADAR ENVIRONMENT THE L 360 WAS NOT PERMITTED EXCEPT IN VFR CONDITIONS. THEY ADVISED TO MAKE R TURN BACK TO LOC. LOC WAS REINTERCEPTED AT 7 DME (APPROX). ALTHOUGH APPROX 2000 ABOVE GS, REMAINDER OF APCH WAS IN VFR CONDITIONS AND WAS CONCLUDED WITH LNDG ON 32. AT A DIFFERENT LOCATION, OUTCOME OF FLT COULD HAVE BEEN DISASTROUS.

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.