ATC controller in charge reported observing the local controller not notice an aircraft in sequence ...

Attributes
ACN	1512437
Time
Date	201801
Local Time Of Day	1201-1800
Place
Locale Reference	FPR.Tower
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-32 Cherokee Six/Lance/Saratoga/6X
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	VFR Route Visual Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	VFR
Person 1
Function	Local Supervisor / CIC
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 1.5
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Narrative:

I was working controller in charge (controller in charge) plugged into the local control position to relieve a controller. Aircraft X called up initially 15 miles southeast of the field. Local control asked the pilot to continue inbound and report 10 miles from the field. After this call local control continued to work the traffic closer to the field. As local control was working traffic aircraft Y reported inbound on an 8 mile VFR/RNAV approach. Aircraft X was still behind and south of aircraft Y. Aircraft X reported 10 miles from the field. Local control responded to aircraft X and told him to continue inbound and follow the aircraft Y traffic that was about 1-2 miles ahead of him (aircraft Y). Local control did not notice that aircraft X was overtaking aircraft Y; after local control gave aircraft X new instructions to turn and follow the aircraft Y he already advised local control he had the traffic insight and was underneath him. I told the pilot of aircraft X to make a 360 to follow but he advised local control he was already ahead of the traffic. Local control asked the pilot to keep his speed up and pointed out the traffic for aircraft Y to follow. Aircraft Y just reported the traffic in sight. The controller was fatigued and I was trying to relieve him because he did look and sound exhausted from training. The local controller at the time also had a little bit of tunnel vision and needed to step back and take a breather.

Original NASA ASRS Text

Title: ATC Controller in Charge reported observing the Local Controller not notice an aircraft in sequence fly underneath and overtake landing traffic.

Narrative: I was working Controller in Charge (CIC) plugged into the Local Control position to relieve a controller. Aircraft X called up initially 15 miles southeast of the field. Local Control asked the pilot to continue inbound and report 10 miles from the field. After this call Local Control continued to work the traffic closer to the field. As Local Control was working traffic Aircraft Y reported inbound on an 8 mile VFR/RNAV Approach. Aircraft X was still behind and south of Aircraft Y. Aircraft X reported 10 miles from the field. Local Control responded to Aircraft X and told him to continue inbound and follow the Aircraft Y traffic that was about 1-2 miles ahead of him (Aircraft Y). Local Control did not notice that Aircraft X was overtaking Aircraft Y; after Local Control gave Aircraft X new instructions to turn and follow the Aircraft Y he already advised Local Control he had the traffic insight and was underneath him. I told the pilot of Aircraft X to make a 360 to follow but he advised Local Control he was already ahead of the traffic. Local Control asked the pilot to keep his speed up and pointed out the traffic for Aircraft Y to follow. Aircraft Y just reported the traffic in sight. The controller was fatigued and I was trying to relieve him because he did look and sound exhausted from training. The Local Controller at the time also had a little bit of tunnel vision and needed to step back and take a breather.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

ATC controller in charge reported observing the local controller not notice an aircraft in sequence fly underneath and overtake landing traffic.