### May 

### 29,2008

Mr. Robert 

### Alexander Obstruction Analysis Specialist Federal

### Aviation Administration 

### I Aviation Plaza Jamaica, 

### NY I1490

Dear 

### Mr- Alexander:

Attached 

### for your review are analyses 

### ofseven different 

### flight proc€dure

### altematives to achieve reduced 

### landing minimums at 

### Lacuardia 

### Airpoi on 

### Rurway 13-31. Asyou know the 

### City of New 

### York has proposed construction 

### ofa Marine Transfer Station, south

### oflacuardia Airport, which 

### will preclude 

### installation 

### ofa CAT 

### II ILS. The 

### FAA aod the 

### PA have been 

### studying this 

### building (OE case

### 2007-AEA-l 163-OE) 

### for the past few 

### months. In an 

### effort to 

### mitigate the impact that construction 

### of this much-needed Waste

### Transfer Station 

### will have on 

### Lacuardia 

### Airport arrivals, the Pon 

### Authority 

## of New

### York & New Jersey has been

### working collaboratively 

### with th€

### City 

### ofNew York to develop alt€mate procedures to gain some 

### improvement in landing 

### minimums. These ne\v procedures were an

### effort to reduce delays 

### during inclement 

### veather and 

### poor 

### visibility conditions, 

### while allowing the 

### City to meet 

### its solid waste management 

### objectives. Our goal was to develop an

### tLS approach 

### installcd on 

### Runway

## 3l in the

### shont€rmand 

### protect for the 

### potential for a

### CAT 

### Il approach 

## h the 

### longer-term.
To assurethat our analysis was accurate, we enlisted the assistadce 

### ofth€ FAA Flight Procedures 

### OIfice in 

### Atlanta 

### (A\tl,J). AVN developed procedures based on several assumptions that

### wc 

### provided. 

### All these procedures were developed to the 

### lowest possible 

### landing minimums that could be

### attaitrcd. In

### totd ihere were 

### five main altematives and

### two addilional altematives requested by 

### FAA Airports 

### Division. We have attached these analyses 

### for your 

### review, as

### well as 

### additional studies 

### performed 

### by the

### City 

### ofNew 

### York- In summary, 

### FAA analyses revealed that a

### CAT 

## Il approach

### to 

### LGA Runway 31 is 

### impractical based onthe 

### myriod ofobstructions that plague the 

### Northem Queens 

### landscape. Therefore we are rescinding our request 

### for the cstablishment 

### of a

### CAT 

## ll approach 

### for Runway 3 I

. Based orlthe rcsults 

### oft]ese FAA studies andthe studies performed by the

### City

## of New 

### York, 

### it is the plan 

### ofthe Port

### Authority to continue to pursue an 

### ILS approachto 

### Runway 31 at 

### LGA. Howevet our best course 

### ofaction is ro 

### utilizc an

### offset localizer and develop aglideslope angle

### of 

### 3.I degrces to 

### obtain a 

### Decision Height 

### of280 HAT with an 

### RVR

### of5,000. This

### will allow operations on 

### Runway

## 3l at 

### lower minimums tha]I we havetoday and also increase safety

### within the 

### existing obstacle

### enviroffnent. 

## lt will also 

### allow for the immediate 

### constuction 

### ofthe Miuine Transfcr Station to the dimensions proposed 

### in the Department 

### ofSanitation's submittal (2007-AEA-1163-OE). 

### Tle Port 

### Authority believes this is a

### win for all parties.

225 Potk Avenue Sauth 

# ,tt-' 

# " ilE PORf,AUnIORITy oF NV & 

### NJ

Wllion R.Decato

### .t

## i> 

# f.3 

# / tt a

# "onroun 

# onrr oF NY & 

### NJ
In addition to the safety benefits, this plan also 

### allows for future 

### technological enharcements that may 

### lower landing 

### minimums, provide environmentsl benefits and reduce delays. We rcquest that the 

### FAA review this anallsis and 

### provide a

### determination to the Department 

### of Sanitation as soon as

### pmctical. We also request that the 

### FAA continue to 

### pusue the 

### installation 

### ofa glideslope on Runway 31to meet 

### long established congressional rcquests. Sincerely, 

# /*"n

Tom 

### Bock General Manager 

### of Airspace 

### Modemization, Technology 

### & Operational Enhancements


### Anachments