Large jet

N178B

1973 Gulfstream G1159B

Registered No accidents on file
Built
1973
Serial
125
Class
Large jet
Engines
2 × Rolls-Royce SPEY 511-8
Status
Current as of October 2026
Registered owner
Missile Defense Agency (Mda) + 1 co-owner (Government)
Based
Tulsa, OK
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Registration record

N178B on the FAA register

Type
1973 Gulfstream G1159B
Serial
125
Engines
2 × Rolls-Royce SPEY 511-8
Registered owner
Missile Defense Agency (Mda) + 1 co-owner
Tulsa, OK
Certificate issued
2004-11-05
Airworthiness date
2023-07-12
Registration expires
2028-11-30
Airworthiness class
Experimental · research & development
Mode S (hex)
A136FE
Mode S (octal)
50233376
Seats (type)
22
Weight class
20,000 lb and over
Status
Current as of October 2026
Registry history

Timeline

  • 2028-11-30
    Registration expires (renewal due).
  • 2023-07-12
    Airworthiness date on the current FAA record (experimental category (research & development)).
  • 2004-11-05
    Certificate of registration issued as N178B to the current registrant.
  • 1977-07-21
    N178B previously assigned to a Bell 47G (s/n 47D32); cancelled.
  • 1973
    Manufactured (1973).
Overview

About N178B

N178B is a 1973 Gulfstream G1159B, serial number 125. The FAA register lists Missile Defense Agency (Mda) + 1 co-owner as the registrant in Tulsa, Oklahoma. The current certificate of registration was issued on November 5, 2004 and expires on November 30, 2028.

The FAA aircraft reference file describes the type as a large jet, two Rolls-Royce SPEY 511-8 engines and 22 seats. Its airworthiness certificate is experimental category (research & development), dated July 12, 2023.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N178B. 2 earlier records involve a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1976-10-15 Accident · Beaver,Ut, 44 Damage: Destroyed NTSB · 3 3443
Reported aircraft: Bell 47G — a different aircraft that carried the N178B registration before this airframe.
1973-12-02 Accident · Missoula,Mont, 26 Damage: Substantial NTSB · 3 4034
Reported aircraft: Bell 47G-3 — a different aircraft that carried the N178B registration before this airframe.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Gulfstream aircraft for sale· Aircraft registered in Oklahoma· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.