Boeing 727-251 N297US
2 June 1987 · Casper, Wyoming, United States · No injuries
Summary
On 2 June 1987 at about 16:12 local time, a Boeing 727-251 registered N297US was involved in an incident near Casper, Wyoming, United States. 72 people were on board and nobody was injured. No probable cause statement is available for this record.
The record
- Date
- at 16:12
- Classification
- Incident
- Location
- Casper, Wyoming, United States
- Coordinates
- Not recorded
- Aircraft
- Boeing 727-251
- Registration
- N297US
- Category
- Airplane
- Engines
- 3
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- San Francisco → Minneapolis
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN87IA145
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 72 | 0 | 0 | 0 | 72 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
BOEING 727 (NORTHWEST FLT 354) & USAF EC-135 (SLUM 51) WERE INVOLVED IN A NR COLLISION AT FL 330. THE MISHAP OCCURRED ASFLT 354 WAS ENE BND ON J-158 & SLUM 51 WAS FLYING ON A RADIAL-DISTANCE (R/D) FLT PLN, FLYING BTN R/D PTS SOUTH OF J-158.AS SLUM 51 APCHD ITS MOST WESTERN PT, THE CREW REQD A RGT TURN TO A R/D PT THAT WAS NOT THE NEXT LISTED PT ON THEIR FLT PLN. THE TRAINEE CTLR (T/C) DIDN'T REALIZE SLUM 51 WAS REQG A ROUTE CHG, BUT THOUGHT THE FLT WANTED TO TURN BACK EAST TOTHE NEXT FILED R/D PT WITH A RGT TURN (INSTEAD OF A L TURN AS PREVIOUSLY DONE). THE T/C REPLIED, 'UNABLE RGT TURN, MAKE A LEFT TURN.' THE INSTRUCTOR HEARD THE REQ, BUT THOUGHT THE T/C'S REPLY WAS DISAPPROVAL OF A ROUTE CHG. AS THE CTLRS TURNED THEIR ATTN TO OTR (HVY/COMPLEX) TRAFFIC, SLUM 51 CONTD A 270 DEG L TURN (TO NORTH) & CONVERGED WITH FLT 354. THE 9020 (PRIMARY) COMPUTER WAS INOP; THE DARC (BACKUP) COMPUTER HAD NO CAPABILITY OF DISPLAYING PROJECTED ROUTES OR PROVID-ING CONFLICT ALERT. NO FLOW CTL RESTRICTIONS WERE IN EFFECT TO RDC THE AMOUNT OF TRAFFIC.
Quoted verbatim from the NTSB record.
Aircraft involved
| Aircraft | Registration | Operator | Damage |
|---|---|---|---|
| Boeing 727-251 727-251 | N297US | - | - |
| Boeing EC-135 EC-135 | USAF | - | - |
Other Boeing 727 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 16 Sep 1987 | Boeing 727 | Tulsa, Oklahoma, United States | Eastern Airlines, Inc. | No injuries | - |
| 28 Oct 1987 | Boeing 727-214 | St Croix | Pan American World Airways | No injuries | - |
| 6 Jan 1987 | Boeing 727-223 | Tampa, Florida, United States | - | No injuries | - |
| 27 Dec 1987 | Boeing 727-231 | Miami, Florida, United States | Trans World Airlines | No injuries | - |
| 13 Mar 1987 | Boeing 727-247 | Calgary, Canada | Western Airlines | No injuries | - |
| 11 Jul 1987 | Boeing 727-225 | Washington, District of Columbia, United States | Eastern Air Lines | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 26 Dec 1987 | Piper PA-18-125 | Riverton, Wyoming, United States | Western Executive Air | Serious injuries | - |
| 3 Apr 1987 | Champion 7GCBC | Rock Rover, Wyoming, United States | Budd B. Palmer | Serious injuries | - |
| 10 Apr 1987 | Cessna A185F | Gillette, Wyoming, United States | Charles A. Rogler | Minor injuries | - |
| 14 Apr 1987 | Piper PA-18-150 | Glenrock, Wyoming, United States | BOB Boner | No injuries | - |
| 28 Apr 1987 | Beechcraft A24R | Beulah, Wyoming, United States | Albert E. Stone | No injuries | - |
| 27 May 1987 | Cessna 180 | Upton, Wyoming, United States | Lawrence Materi | No injuries | - |