PACIFIC FLYING BOATS INC· ICAO24 a6d641· last seen Oct 2025

N54GZ is a Grumman G-73 Mallard, a twin-engine piston aircraft operated by PACIFIC FLYING BOATS INC. SkyMeter has tracked 30 flights totalling 7 hours of airtime via ADS-B. The most frequent segment is 1RL to CZBB. Service window in our records spans 121 days. Of those flights, 8 (26.7%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Grumman G-73 Mallard has a maximum takeoff weight of 12,500 lb, light wake category.

About the Grumman G-73 Mallard

The Grumman G-73 Mallard is a twin-engine amphibious aircraft that epitomizes the golden age of luxury flying boats. First flown in 1946, the Mallard was designed as a high-end commercial amphibian for short-haul routes and wealthy private owners who wanted the freedom to land on water or pavement. Grumman built just 59 examples between 1946 and 1951, making it one of the rarer postwar amphibians still flying today.

Powered by two Pratt & Whitney R-1340 radial engines producing 600 horsepower each, the Mallard could carry 10-12 passengers in a pressurized cabin—a genuine luxury for an amphibian of its era. Its robust construction and versatile landing gear made it a favorite for island-hopping operations in the Caribbean, Alaska, and the Pacific Northwest. The type saw service with small airlines, charter operators, and private owners who valued its ability to access remote waterfront destinations unreachable by conventional aircraft.

Though most Mallards have been retired or lost to accidents over the decades, a dedicated community of owners and restorers keeps a handful airworthy, often with modern turboprop conversions that dramatically improve performance and reliability. The Mallard's distinctive boat hull, high wing, and radial-engine rumble make it instantly recognizable at seaplane bases and airshows. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
30
all time
FLOWN HOURS
7
tracked time
📍
AIRPORTS VISITED
9
unique
📡
CALLSIGNS
1
9 routes
📅
SERVICE PERIOD
06/28/2025 → 10/27/2025
first → last
INCIDENT RATE
26.7%
8 flagged

Top routes

By flight count

6
1RL CZBB
6
2
1
YAJ CZBB
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Grumman G-73 Mallard

Engines
Twin Piston
Vref (approach)
70 kt
MTOW
12,500 lb
Wake category
L

Recent flights

Newest 15 operations of N54GZ

15
10/27/2025
19m
No alerts
10/27/2025
7m
No alerts
10/13/2025
21m
No alerts
10/12/2025
16m
No alerts
10/12/2025
13m
No alerts
09/08/2025
6m
△ Unstable approach
09/01/2025
8m
No alerts
08/29/2025
2m
△ Unstable approach
08/01/2025
6m
No alerts
07/12/2025
7m
No alerts
07/05/2025
51m
△ Unstable approach
07/05/2025
44m
No alerts
07/05/2025
2m
No alerts
07/02/2025
3m
No alerts
06/28/2025
2m
△ Unstable approach
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