Casa C-212-CC accident near Mayaguez, Puerto Rico, May 8, 1987
On May 8, 1987 at about 10:50 am local time, a Casa C-212-CC, registered N432CA, was destroyed in an accident near Mayaguez, Puerto Rico (Mayaguez airport). It was a flight of an unrecorded kind under charter and air-taxi rules (Part 135). 2 people were killed and 4 people had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 8, 1987 · about 10:50 am local time
- Place
- Mayaguez, Puerto Rico · Mayaguez
- Type
- Accident
- Injuries
- 2 people were killed and 4 people had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Casa C-212-CC
- Registration
- N432CA · registry record · serial 271
- Damage
- Destroyed
- Flight
- Flight of an unrecorded kind · charter and air-taxi rules (Part 135)
The NTSB's narrative final · quoted from the NTSB record
AFTER SEVERAL MAINTENANCE ADJUSTMENTS OF THE RIGHT PROPELLER AND FLIGHT IDLE FUEL FLOW, THE AIRCRAFT WAS TEST FLOWN AND RELEASED FOR FLIGHT. SEVERAL PILOTS CONTINUED TO NOTE DESCREPANCIES CONCERNING THE RIGHT PROPELLER SYSTEM. ADJUSTMENTS WERE MADE AND THE AIRCRAFT WAS AGAIN RELEASED FOR FLIGHT. AT MAYAGUEZ, THE CREW MADE A SHORT, STEEP APPROACHTO THE RUNWAY. ON VERY SHORT FINAL WITNESSES SAID THEY HEARD SOUNDS RESEMBLING A PROPELLER IN REVERSE THRUST. THE AIRCRAFT MADE AN EXTREME YAW TO THE RIGHT, FOLLOWED BY A LEFT BANK, THEN A RIGHT BANK. THE AIRCRAFT IMPACTED RIGHT WING FIRST. THE POST-ACCIDENT INVESTIGATION REVEALED THAT THE RIGHT PROPELLER HAD BEEN IN THE BETA RANGE. THE RIGHT ENGINE FLIGHT IDLE FUEL FLOW WAS EXCESSIVELY HIGH. EXAM OF THE MAINTENANCE PROGRAM SHOWED DEFICIENCIES IN THE MANAGEMENT, SUPERVISION, AND HANDLING OF PILOT-REPORTED PROBLEMS. THE INVESTIGATION ALSO FOUND THE FAA MANAGEMENT OF THE BILATERAL TYPE CERTIFICATION OF THE C-212-CC INEFFECTIVE. (FOR FURTHER INFORMATION SEE NTSB/AAR-88/07.)
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot, commercial pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 9,802 hours in all; 473 in this make and model; 78 in the last 30 days
- Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Last inspection: continuous airworthiness programme, May 7, 1987; 10 hours since
- Maximum gross weight: 16,976 lb
- Seats: 19
- Landing gear: fixed
- Engine: Garrett TPE-331-10R (turboprop); 0 hours total
- Fire on the ground
The flight
- Departed from: SJU San Juan PR
- Destination: MAZ Mayaguez PR
- Runway 9, 4,999 ft by 100 ft
- A second pilot was aboard
Weather at the time
- Light: dawn
- Wind: from 160° at 3 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 75°F (24°C), dew point 68°F (20°C)
- Altimeter: 30.00 inHg
- Observation at 10:50 am from MAZ
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 | |||
| Passengers | 4 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.