An small transport pilot made an approach using a LORAN RNAV fix when none was shown on the NDB appr...

Attributes
ACN	225636
Time
Date	199211
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lul
State Reference	MS
Altitude	msl bound lower : 238 msl bound upper : 2300
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu
Operator	other
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other landing other
Flight Plan	IFR
Person 1
Affiliation	government other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 50 flight time total : 6000 flight time type : 300
ASRS Report	225636
Person 2
Affiliation	government other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : far non adherence : published procedure non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was captain of an small transport aircraft. Were en route to lul, ms, level at 7000 ft. At this time, I determined that eaton VOR was OTS. This was confirmed by memphis center. With eaton OTS, the only remaining instrument approach was an NDB to the southeast. We were established on the inbound magnetic bearing of 137 degrees and approximately 30 NM out by use of LORAN and RNAV. ZHU cleared us to 2300 ft and for the approach. We were level at 2300 ft and on the bearing and IMC. The approach to lul required the procedure turn to be made to the west and within 10 NM of the beacon. At 10 NM, copilot called out 'you are cleared to 960 ft MSL.' normal descent to MDA and airport seen at 5.5 mi. Is a procedure turn required in this case? At the time, copilot and myself agreed we were established on the correct radial and were inside the 10 NM. If a procedure turn is required, then it should be noted on the approach plate. Use of LORAN information: it is almost universally accepted by pilots that LORAN information is to be used.

Original NASA ASRS Text

Title: AN SMT PLT MADE AN APCH USING A LORAN RNAV FIX WHEN NONE WAS SHOWN ON THE NDB APCH PROC.

Narrative: I WAS CAPT OF AN SMT ACFT. WERE ENRTE TO LUL, MS, LEVEL AT 7000 FT. AT THIS TIME, I DETERMINED THAT EATON VOR WAS OTS. THIS WAS CONFIRMED BY MEMPHIS CTR. WITH EATON OTS, THE ONLY REMAINING INST APCH WAS AN NDB TO THE SE. WE WERE ESTABLISHED ON THE INBOUND MAGNETIC BEARING OF 137 DEGS AND APPROX 30 NM OUT BY USE OF LORAN AND RNAV. ZHU CLRED US TO 2300 FT AND FOR THE APCH. WE WERE LEVEL AT 2300 FT AND ON THE BEARING AND IMC. THE APCH TO LUL REQUIRED THE PROC TURN TO BE MADE TO THE W AND WITHIN 10 NM OF THE BEACON. AT 10 NM, COPLT CALLED OUT 'YOU ARE CLRED TO 960 FT MSL.' NORMAL DSCNT TO MDA AND ARPT SEEN AT 5.5 MI. IS A PROC TURN REQUIRED IN THIS CASE? AT THE TIME, COPLT AND MYSELF AGREED WE WERE ESTABLISHED ON THE CORRECT RADIAL AND WERE INSIDE THE 10 NM. IF A PROC TURN IS REQUIRED, THEN IT SHOULD BE NOTED ON THE APCH PLATE. USE OF LORAN INFO: IT IS ALMOST UNIVERSALLY ACCEPTED BY PLTS THAT LORAN INFO IS TO BE USED.

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.

An small transport pilot made an approach using a LORAN RNAV fix when none was shown on the NDB approach procedure.