Oil rig shuttle helicopter penetrated the ADIZ at excessive speed and was intercepted by norad fgt's...

Attributes
ACN	99391
Time
Date	198811
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lla
State Reference	LA
Altitude	msl bound lower : 9500 msl bound upper : 9500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu military facility : aex artcc : zjx
Operator	general aviation : corporate
Make Model Name	Helicopter
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Operator	other
Make Model Name	Fighter
Flight Phase	cruise other cruise other descent other
Flight Plan	DVR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8000
ASRS Report	99391
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 8500
ASRS Report	99140
Events
Anomaly	conflict : airborne less severe
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Miss Distance	horizontal : 100 vertical : 20
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

While in level cruise flight inbound on lla 215 degree right 2 east fgt aircraft appeared to be texas ANG, overtook our aircraft on left side at a range of about 100' latitude and 15-20' below. First aircraft was not seen until it was in front of us. Second aircraft was observed much closer, fgt speed was 30-50 KTS faster, marking on fgt looked like tx flag within unit markings, tail #'south could not be read because of low contrast paint. During this time we noted our transponder was replying to multiple interrogations. I am sure we were on ZHU radar, and the fgt were vectored to us. Request review of procedures and enforcement of far 91.65 a and B. Callback conversation with reporter revealed the following: reporter stated that during this flight they had penetrated the ADIZ. Normally, these shuttle flts to the oil rigs in the gulf and are intercepted by the military because they are operated below 10000' and under 180 KTS. On this occasion, the flight was at 9500', but a very strong south wind caused their ground speed to be near 200 KTS. For this reason, they deduced that ocean surveillance had observed their high rate of speed and had sent the 2 fgt's to investigate.

Original NASA ASRS Text

Title: OIL RIG SHUTTLE HELICOPTER PENETRATED THE ADIZ AT EXCESSIVE SPEED AND WAS INTERCEPTED BY NORAD FGT'S.

Narrative: WHILE IN LEVEL CRUISE FLT INBND ON LLA 215 DEG R 2 E FGT ACFT APPEARED TO BE TEXAS ANG, OVERTOOK OUR ACFT ON LEFT SIDE AT A RANGE OF ABOUT 100' LAT AND 15-20' BELOW. FIRST ACFT WAS NOT SEEN UNTIL IT WAS IN FRONT OF US. SECOND ACFT WAS OBSERVED MUCH CLOSER, FGT SPD WAS 30-50 KTS FASTER, MARKING ON FGT LOOKED LIKE TX FLAG WITHIN UNIT MARKINGS, TAIL #'S COULD NOT BE READ BECAUSE OF LOW CONTRAST PAINT. DURING THIS TIME WE NOTED OUR TRANSPONDER WAS REPLYING TO MULTIPLE INTERROGATIONS. I AM SURE WE WERE ON ZHU RADAR, AND THE FGT WERE VECTORED TO US. REQUEST REVIEW OF PROCS AND ENFORCEMENT OF FAR 91.65 A AND B. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR STATED THAT DURING THIS FLT THEY HAD PENETRATED THE ADIZ. NORMALLY, THESE SHUTTLE FLTS TO THE OIL RIGS IN THE GULF AND ARE INTERCEPTED BY THE MIL BECAUSE THEY ARE OPERATED BELOW 10000' AND UNDER 180 KTS. ON THIS OCCASION, THE FLT WAS AT 9500', BUT A VERY STRONG S WIND CAUSED THEIR GND SPD TO BE NEAR 200 KTS. FOR THIS REASON, THEY DEDUCED THAT OCEAN SURVEILLANCE HAD OBSERVED THEIR HIGH RATE OF SPD AND HAD SENT THE 2 FGT'S TO INVESTIGATE.

Data retrieved from NASA's ASRS site as of August 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.