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Small aircraft on INS instruction cross-country flight has near midair collision with aircraft practicing stalls.
| Attributes | |
| ACN | 149218 |
| Time | |
| Date | 199006 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : iad |
| State Reference | VA |
| Altitude | msl bound lower : 3000 msl bound upper : 3300 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : iad |
| Operator | general aviation : instructional |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 230 flight time total : 550 flight time type : 115 |
| ASRS Report | 149218 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | other |
| Miss Distance | horizontal : 150 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Small aircraft X was on an IFR flight plan to dulles. We passed manassas when we encountered a near miss. The air traffic controller called traffic, aircraft Y, at 11 O'clock, 2 mi, indicating 3100'. We did not see the Y because of the haze. We could see horizontally for 2-3 mi. He then told us to climb to 3500' to clear the Y. We were climbing to 3500' at 3300', at which time the controller called Y at 11:30-12 O'clock, 1 mi, and told us to descend to clear the traffic. Normally the Y would have cleared and passed in front of our aircraft. All of a sudden aircraft Y slowed down and started to descend. At that moment we were constantly on his right and at a lower altitude. I was afraid of having a close call, so I grabbed the controls and started a steep descent. We cleared the Y with about 100-200' between us. Upon arriving at dulles, we were approached by the Y pilot who was quite upset about the incident. He felt that I was at fault because I approached him from behind. He said he was practicing stalls when we showed up. I told him how it happened according to me and then he walked away leaving me with the impression that he was right and I was wrong. He came back twice after that. The last time he asked for my name and tail #, after which I asked for his. When he left he said he was going to file a safety report.
Original NASA ASRS Text
Title: SMA ON INS INSTRUCTION CROSS-COUNTRY FLT HAS NMAC WITH ACFT PRACTICING STALLS.
Narrative: SMA X WAS ON AN IFR FLT PLAN TO DULLES. WE PASSED MANASSAS WHEN WE ENCOUNTERED A NEAR MISS. THE AIR TFC CTLR CALLED TFC, ACFT Y, AT 11 O'CLOCK, 2 MI, INDICATING 3100'. WE DID NOT SEE THE Y BECAUSE OF THE HAZE. WE COULD SEE HORIZONTALLY FOR 2-3 MI. HE THEN TOLD US TO CLB TO 3500' TO CLR THE Y. WE WERE CLBING TO 3500' AT 3300', AT WHICH TIME THE CTLR CALLED Y AT 11:30-12 O'CLOCK, 1 MI, AND TOLD US TO DSND TO CLR THE TFC. NORMALLY THE Y WOULD HAVE CLRED AND PASSED IN FRONT OF OUR ACFT. ALL OF A SUDDEN ACFT Y SLOWED DOWN AND STARTED TO DSND. AT THAT MOMENT WE WERE CONSTANTLY ON HIS RIGHT AND AT A LOWER ALT. I WAS AFRAID OF HAVING A CLOSE CALL, SO I GRABBED THE CTLS AND STARTED A STEEP DSNT. WE CLRED THE Y WITH ABOUT 100-200' BTWN US. UPON ARRIVING AT DULLES, WE WERE APCHED BY THE Y PLT WHO WAS QUITE UPSET ABOUT THE INCIDENT. HE FELT THAT I WAS AT FAULT BECAUSE I APCHED HIM FROM BEHIND. HE SAID HE WAS PRACTICING STALLS WHEN WE SHOWED UP. I TOLD HIM HOW IT HAPPENED ACCORDING TO ME AND THEN HE WALKED AWAY LEAVING ME WITH THE IMPRESSION THAT HE WAS RIGHT AND I WAS WRONG. HE CAME BACK TWICE AFTER THAT. THE LAST TIME HE ASKED FOR MY NAME AND TAIL #, AFTER WHICH I ASKED FOR HIS. WHEN HE LEFT HE SAID HE WAS GOING TO FILE A SAFETY RPT.
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.