Instructor flying as safety pilot with pilot under the hood has near midair collision with light twi...

Attributes
ACN	325434
Time
Date	199601
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : 29j
State Reference	SC
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : clt
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi pilot : instrument
Experience	flight time last 90 days : 10 flight time total : 4500 flight time type : 3000
ASRS Report	325434
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 0 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

With PF under the hood the light twin approached our aircraft from the left hidden from the safety pilot by the left front door post. The safety pilot saw the aircraft a split second before it passed below our aircraft missing us by 50 ft or less. There was no time for evasive action. It was not possible to tell whether the pilot of the other aircraft initiated an evasive maneuver, or not. It is not known whether the twin was leaving the pattern at rock hill, sc, or was flying by. Rock hill lies under charlotte, nc, class B airspace with the floor of the airspace at 3600 ft. We were not monitoring unicom or charlotte approach at the time. The class B airspace concentrates a lot of VFR traffic under the shelf of the airspace causing more congestion there. It's hard to say what could have been done to avert this type of occurrence. Renewed and constant vigilance is very important. Perhaps monitoring of unicom and approach frequency might have helped if the other aircraft was in contact.

Original NASA ASRS Text

Title: INSTRUCTOR FLYING AS SAFETY PLT WITH PLT UNDER THE HOOD HAS NMAC WITH LIGHT TWIN AT CRUISE.

Narrative: WITH PF UNDER THE HOOD THE LIGHT TWIN APCHED OUR ACFT FROM THE L HIDDEN FROM THE SAFETY PLT BY THE L FRONT DOOR POST. THE SAFETY PLT SAW THE ACFT A SPLIT SECOND BEFORE IT PASSED BELOW OUR ACFT MISSING US BY 50 FT OR LESS. THERE WAS NO TIME FOR EVASIVE ACTION. IT WAS NOT POSSIBLE TO TELL WHETHER THE PLT OF THE OTHER ACFT INITIATED AN EVASIVE MANEUVER, OR NOT. IT IS NOT KNOWN WHETHER THE TWIN WAS LEAVING THE PATTERN AT ROCK HILL, SC, OR WAS FLYING BY. ROCK HILL LIES UNDER CHARLOTTE, NC, CLASS B AIRSPACE WITH THE FLOOR OF THE AIRSPACE AT 3600 FT. WE WERE NOT MONITORING UNICOM OR CHARLOTTE APCH AT THE TIME. THE CLASS B AIRSPACE CONCENTRATES A LOT OF VFR TFC UNDER THE SHELF OF THE AIRSPACE CAUSING MORE CONGESTION THERE. IT'S HARD TO SAY WHAT COULD HAVE BEEN DONE TO AVERT THIS TYPE OF OCCURRENCE. RENEWED AND CONSTANT VIGILANCE IS VERY IMPORTANT. PERHAPS MONITORING OF UNICOM AND APCH FREQ MIGHT HAVE HELPED IF THE OTHER ACFT WAS IN CONTACT.

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.

Instructor flying as safety pilot with pilot under the hood has near midair collision with light twin at cruise.