# NTSB ENG26WA024: Gulfstream Aerospace G-IV, Dushanbe, Tajikistan, May 27, 2026

- Type: NTSB incident investigation
- Date: May 27, 2026, 08:30 UTC, 08:30 local
- Place: Dushanbe, Tajikistan
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: N/A
- Investigation class: Class 5 - No publish
- NTSB office: Aviation Engineering Division
- Parties: Interstate Aviation Committee (MAK), FAA/AVP-110, Gulfstream
- NTSB case key (mKey): 203072
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ENG26WA024
- NTSB report (PDF): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/203072/pdf
- Page: https://openairdocs.org/ntsb/ENG26WA024

## Sequence of events

- Enroute-change of cruise level: Pressure/environ sys malf/fail (defining event)

## Aircraft

- Registration: N899AL, registered now (https://openairdocs.org/aircraft/N899AL) (OpenAirDocs)
- Reported make and model: GULFSTREAM AEROSPACE G-IV
- Registry model: Gulfstream Aerospace G-IV (registry code 3980115, https://openairdocs.org/model/gulfstream-aerospace-g-iv) (OpenAirDocs)
- Registry engine: Rolls-Royce TAY-611SER (registry code 54561, https://openairdocs.org/engine/rolls-royce-tay-611ser) (OpenAirDocs)
- Category: Airplane
- Serial number: 1495
- Year built: 2002
- Engines: ROLLS-ROYC TAY 611SER 12450 lbs thrust; ROLLS-ROYC TAY 611SER 12450 lbs thrust
- Damage: No damage
- Flight: Non-U.S., non-commercial

## Weather



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

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From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.