# NTSB MIA89IA035: Boeing 707-355C, N707MB, Sanford, FL, November 16, 1988

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: November 16, 1988, 12:25 local (17:25 UTC)
- Place: Sanford, FL
- Coordinates: 28.809291, -81.330314 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=28.8093&lon=-81.3303&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 12 uninjured
- Status: Completed, report January 25, 1990
- Report: Approved by Office Director
- Safety recommendations: Yes
- NTSB case key (mKey): 32323
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA89IA035
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32323/pdf
- Page: https://openairdocs.org/ntsb/MIA89IA035

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing - flare/touchdown
  - flare - improper, dual student (cause)
  - airspeed(vfe) - not maintained, dual student (cause)
  - inadequate transition/upgrade training, faa(other/organization) (contributing factor)
  - monitoring - poor, pilot in command(cfi) (cause)
  - supervision - inadequate, pilot in command(cfi) (cause)

## Analysis

THE NON-TYPE RATED FAA FLIGHT TEST ENGINEER EXECUTED A VISUAL APPROACH AND WAS OBSERVED TO BE ERRATIC AND FLYING AT V-REF WHEN HE CHOPPED THE POWER AT 50 FT AGL AND THE AIRCRAFT LANDED HARD. THE INSTRUCTOR PILOT THEN TOOK CONTROL OF THE AIRCRAFT AND EXECUTED A GO-AROUND. AFTER FLIGHT TO THE FINAL DESTINATION MINOR DAMAGE WAS FOUND ON POST FLIGHT INSPECTION.

## Aircraft

- Registration: [N707MB](https://openairdocs.org/deregistered/N707MB-1996-02-22), registration cancelled 1996-02-22, S/N 19986 (OpenAirDocs)
- Reported make and model: BOEING 707-355C
- Registry model: [Boeing 707-355C](https://openairdocs.org/model/boeing-707-355c) (registry code 138367S) (OpenAirDocs)
- Category: Airplane
- Serial number: 19986
- Airframe hours: 39210
- Engines: P&W JT3D-3C 18000 lbs thrust turbo fan
- Damage: Minor damage
- Flight: Part 91
- Operator: Nmb, Singapore Ltd
- Registered owner: Nmb Singapore Ltd
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: AAIP, November 6, 1988, 2 hours before
- Departed: MCO, ORLANDO, FL
- Flight plan: IFR
- Airport: SFB, Sanford, runway 9, 8,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; flight instructor, commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; toxicology performed; flight hours: 34,000 total, 12,000 in this make and model, 28,000 as pilot in command, 94 in the last 90 days, 58 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 10 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: SFB

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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